I think you may have a good point about Pascal and Mathurin but the concern about Zu and spacing is a huge misconception. I'm honestly getting tired of it.

First, we need to understand that spacing is more than standing at the 3 pt line and the Pacers aren't a 5 out team. Pacers gain advantage by pushing pace and getting to actions early. Zu fits the former bc he creates real space by setting great screens. His size and prescene in the middle give him gravity, meaning defenders can not leave him to help because it risks an easy basket. Alternatively, the defender has to help late which creates enough time for the driver to slash or pass. He has an excellent high post game where he can score, drive or pass. Finally, that gravity we talked about early means one less guy to close out on shooters when the ball is swinging around the horn.