I believe that the chances of this happening is as slim as hoping that the bar will touch their chest when they bench.
If one of these strangers have the guts to go to you and tell you that squatting deep will hurt your knees, what would you do?
Then imagine you, a stranger to them, tells them to squat deeper for hip drive to happen, what would they do?
Both sides feel one is more knowledgeable, so, its up to them if they will listen or not for we know that we are the dominant species.