Studying anything above your level leads to your getting worse. Chess is pretty brutal in punishing arrogance. It takes humility to improve.
It might not be arrogance. A lot of people go around urging people to read this or that without paying much attention to the level of the person who will be doing the reading. It is very easy for a beginner to be a victim of that sort of behavior.
Seeing that you have a relatively low rating, I appreciate your frustration with a book that has grown from about a 200 page 1st Edition that was required reading for the high school team I coached to a monstrous 658 page work that is not focused on things weaker players need to learn first and gets too deep into some things where those players would be better off moving on to other things. Some key things that were highlighted in the first edition are now buried among lots of other things, like the how the rank a Knight is on affects it's strength.
But please don't assume you know enough about chess to say Silman is wrong. The information is on target and benefited the under 2000-rated players I know who have studied the book, including myself.
When I coached a high school chess team in the '90's and '00's, I personally bought copies of the first edition of Silman's How to Reassess Your Chess for EVERY one of my OTB players, gave them specific page assignments to STUDY, not just read, and quizzed them individually on what they studied. We won the 3rd, 4th, and 5th place team trophies in the State Scholastic Championship in three consecutive years and won our County Chess Championship each of those years in the toughest county: we had FOUR of the top 10 teams in the state each year.
The current 4th Edition, a monstrous 658 pages compared to about 200 pages for the 1st Edition, is something I might not give a high school team today because it's now so extensive it's confusing to anyone not committed to intense study of the book.
But it's STILL a book that makes great sense.
Even if you don't evaluate using Silman's system of Imbalances the way he does, you're still going to look at Pawn Structure, Space, File Control, Superior Minor Piece (Knight Outposts and Rank, Good vs Bad Bishops, and so on), etc.