I liked the fact that kakashi grew throughout the series. Like kakashis part in this series is one of if not my consistently favorite thing. He did seem weaker than I thought he would be, he also ended up alot stronger than I expected as well.
Like we always kinda figured at some point naruto and sasuke would reach hashi and madara style levels, but kakashi for me was up in the air, especially during the beginning of ship.
I think they did good, it wouldn’t of been as fun or satisfying had he been war arc powerful early on, he’s in it too much imo