The problem with the idea of early exchanges is that almost NEVER are those exchanges even.
Just because a Bishop is worth 3 and a Knight is worth 3 does not make a B for B trade, N for N trade, or B for N trade even at all.
If my Bishop is bad and yours is good, the trade probably favors me. If my Knight is stuck on the edge of the board and your Bishop is in a great spot, your trading it for my Knight is likely good for me.
A Knight and Bishop are worth 3 when placed on a board by itself with nothing else disturbing it. Throw a bunch of pieces on the board, and suddenly, a Bishop might be worth 5! Or 1! Same with a Knight! The Knight could be a 6-point Monster! It can also be a half-point piece of turd!
So what you are calling "even trades" are probably NOT "even trades" at all!
Now, my personal experiences, perhaps more phsycological than logical. I feel that I have "more chances" to hang on for dear life over a simplified board longer
That's a good way to say it, the psychological part. It feels safe, and the game lasts a long time, so you might feel like you did a good job.
These people are talking about endgames, but honestly if you trade just to trade you'll be lucky to reach an endgame (at least one where it's not already time to resign).
So you might make the game 60 moves, but you'll have been lost from move 20.
Here's a typical example, where the game is, in a practical sense, over on move 22.