You can repeat it until the cows come home but you are wrong. In some drop situations you can go back as far as you want to, but not when you are replaying the shot from the original position. Golfers often have to play from their divot in these situations. Why would they risk that if they could go back 2 yards?
Let me guess, you are not a golfer, right?
that is absurd, and patently not true. You are NEVER required to drop your ball into your divot, or anyone elses. It may happen on a given drop, but is NEVER required. Players always try for a favorable drop...as they should. You are always given some latitude in a drop situation.
Besides, you miss the point: the penalty for improper drop WAS applied, after his round, two shots. So he did pay that price.