The swing is most definitely NOT simple. Sorry! It is never “The ONE thing nobody ever talks about!” Or “The ONE thing 90% of golfers do wrong!” Or….
It is just complicated.
The athletically inclined don’t struggle as much and they can adapt to whatever mechanics and philosophy promoted by their instructor. Many end up swinging identically. Look at most of the PGA Tour!
For the rest of us, I like watching PGA pros that don’t fit the mold. Because I don’t fit the mold. I didn’t learn soon enough or am not athletic enough. My swing is unique. Your swing is possibly unique. Embrace it!
Like Bryson says, “If something does not help after 5 minutes of trying it. Move on!” I agree. Not all feels or suggestions make sense nor should they!