Yeah, the "dirty play" people are looking for reasons that don't exist. Pachulia's momentum is carrying him toward the shooter......as the momentum carries ALL closeout defenders toward the shooter. He takes another step/hop step because as a 7-foot lumbering big (for the most part) Zaza doesn't possess the agility to really do much else 25 feet from the basket. These types of innocuous plays occur a dozen times in every NBA game.....many times a personal foul is called on the closeout defender per the rule that you must allow the shooter to land. Noboby has called closeouts a dirty play all season but it is now because Kawhi has a bad ankle? It really is a silly argument imo. Even Kawhi said so.
Finally, something I can identify with. I used to play a lot of pick up ball in college with guys that were much much better than me. I got a rep as a dirty player when the fact of the matter was I was just not that good which led to me doing things that were unintentional but probably looked dirty as hell.