That's a point of view.
I feel exactly the opposite way. The lack of enforcement of the rules stifles skill and talent - skating, speed, passing, shooting, creativity, etc. It rewards mugging, tripping, hooking, cross-checking, etc. This debate is not about clean hitting, within the rules.
BUT, the most important thing is consistency. If the rules don't apply in the PO, then they shouldn't in the regular season either. Or vice-versa. Decide what the rules are and then enforce them - whatever they are.