I even explained how they are similar. I think you stopped reading just before the colon (:).
Watch an experienced climber move their feet. Typically, unless the holds require otherwise, they'll sag down and out, getting their hips away from the wall, then they'll place their feet, then they'll move their hips close to the wall again. Why? Because that way they know that they're putting their feet on the best holds available.
All this stay-close garbage will teach people is to put their feet on the first thing they don't immediately slip off of. Learn to put your feet where you mean to, then move your hips close to the wall to stand up on them, then get your hips away from the wall again so you can see where you need to move next.
Training technique involves more than just doing an exercise. You have to recognize what it is trying to teach you.