I don't think beginners need to be told to believe in magic in chess. That's not what the principles are about. They would get slaugthered the other way more because (this would be the beginner making useless pawn moves with no direction) the other beginner would be able to exploit them with tactics (this is what usually happens, yes in the najdorf that is an exception, but if the beginner did this in many other openings thinking it was ok, this could quite likely happen) and use his better developed army to try to breakthrough. That's about the only thing beginners could do. Even if they had the technically better position with the pawn moves they probably wouldn't know how to continue and if they did it probably means they werern't learning enough tactics. I'm not saying the beginner just gets a "bad position", I mean he will probably get attacked. That's the only things either beginner principles or not beginner would understand but having the bad strategic position is the least of their worries.
"Those beginners have a big block of stone in the way of their progress. Until the realize that the way forward involves calculation and a much sharper understanding of the need to work with the enemy pieces they won't make their best progress."
They will only have to realize that after mastering the principles and tactics. Some modification would need to be done, but if they had never learned the principles from the beginning it would be much too complicated for them to learn. To learn higher levels of math your brain needs to develop and you have to build on what you've leanred before. Learning when to break the rules is part of this, and I think it's easier than you think unless the player is the kind who is unwilling to think for himself, then he's probably not going to be a good player in any case unless that can be changed, but that had nothing to do with him learning principles or not, because if he didn't learn them he wouldn't want to play chess because he wants guidelines.
Principles are known not to be magical, and JG27Pyth, the thing with beginners is... they can't do anything you mentioned because they're, well beginners. And you can't teach them all of that from square one. The principles are not meant for them to play beautifull chess with them, they're decent rules that give them the understanding they need starting out, patching up that part of the game so that they learn tactics and basic endgames. I eventually threw away the principles or at least knew when to break them as I learned more about planning, it's not that hard. Because they don't
"coordinating one's pieces, limiting the opponent's options, seizing initiative by attacking weaknesses" does not mean the principles are to blame. If they don't know how to do that stuff, they're better off following the principle than trying a rediculous idea and faling miserably. There are alot of things that are more important than getting rid of the dogma in the rules. Just because you don't follow rules doesn't mean you must be a good player obviously. It's when you don't for good reason, which beginners do not have. Learning to not faithfully follow the rules is part of your growth and not even that hard compared to other things, and until then the principles serve well for certain, like a "strategy substitute". Seriously, in tactical games sometimes weak players get away with good tactics and the strategy is deep as "attack the king". That's why they strive for those positions starting out. Tactics comes first, and your ideas contradicting the principles are more for strategy, which, yes, can get slaughtered if you're bad at tactics.
Sure to an extent they limit creativity, but that's a good thing because if a beginner was completely on his own he would certainly pick a terrible idea but the principles at least make him do something more reasonable like put a rook in the center. This seems extremely obvious to us, but if the beginner didn't learn the principles it really wouldn't be. So they're worth mentioning, you just have to say "these rules are meant to be broken sometimes".
Imagine if you told a beginner that they didn't need to follow any principles, "don't care about development", just have a plan in mind.
Imagine! Then they'd play bad chess (just like they're going to do anyway with or without principles) but at least they don't think magic principles are going to show the way! They know they need to think about what their pieces are doing for each other, and to the enemy.
The way you're proposing would probably get slaugthered alot more than it actually wins for them.
No way. They might lose eventually from bad position, sure... but they aren't going to get slaughtered -- you get slaughtered when you fail to pay attention to your opponent's threats. Before a single principle is considered the beginner needs to look at his opponent's threats, before and after the move he wants to make.
However some beginners state them as if they are rules set in stone, but it's usually ok for them to do so until they want to get better.
Those beginners have a big block of stone in the way of their progress. Until they realize that the way forward involves calculation and a much sharper understanding of the need to work with the enemy pieces they won't make their best progress.
I don't see howthese guidelines hurt MORE than they help
I've tried to explain: They encourage faulty lazy thinking ("following principles is the way to make good moves"; "I don't need to think about my opponent's moves too hard"). They limit creativity and cloud judgment distracting beginners from important things they need to learn to do, like coordinating one's pieces, limiting the opponent's options, seizing initiative by attacking weaknesses, etc.