YT teaching vids probably do more harm than good overall, it’s fine to say if you want to stop doing X you need to change A or B or C or a combination of all, but the reality is one person’s swing is not the same as another, and the chances of a standard fix working for anyone’s swing is not that likely. I went down the YT teaching route but glad I’m now out of it
Yeah, I think people have to be really careful. Grip and set-up and usually reasonably safe tips, but once you get into the weeds of the swing it's impossible to know if a tip is right for you because it depends on so many other things, especially your grip and set-up. Sometimes you can drop5on lucky, others you might just make things worse.
I notice Crossfield recently did a podcast and video on shallowing the club where he rubbished the idea of feeling like the 'club was dropping behind you' saying he and others had it wrong because with Gears you can now measure everything...' unsure what this had to do with it as plenty of coaches apparently felt this was a poor drill all along. Amusingly his video of just 5 months ago where he recommended the drill is still on youtube.
I stopped looking at them years ago until about a month ago when I started watching Adam Porzak and spent a lot of time in front of a mirror working on his live lessons on set-up, grip, takeaway and backswing. He teaches a lot of top drawer state golfers so he clearly knows his beans, and it's been really beneficial for me.