Personally i don't agree with that....I'm an "old dog' if ever there was one and I'm open to new shit.
Perfect example i did legs today and i did exclusively single leg movements for the entire workout...12-16 reps and really focused.
But I hear what you re saying..lotta dudes just go through the motions
you should try 100 sets of squats,,,in the back woods about 20 reps all day long,,,,arnold and some buddies used to do that with ranco,,they had lots of un we cook steak of course,,marinate all day then next day squat day they carry about 225lbs into backwoods together with 4 other guys,,