I wonder if it's really as simple as the fact that
1) we don't have a true dominant scorer ala Harden/Durant/Curry
and 2) also relating to 1, we don't have good enough shooting.
So it's hard to run a very good team offense because you don't have enough versatile threats. Teams can just stick a guy on Buddy on the perimeter, form a wall against Fox, play Hali for the pass etc. It's too predictable and without forcing the defense to scramble, you'll never have a great team-oriented offense with lots of movement ala the Jazz, Warriors, Spurs of old etc.
On the flip side, you could go with the kind of style that just sees a star player dominating the ball and surrounding them with shooters, but again you run into the problem that Fox is not 6'11 but can't shoot. Which might have still been ok in the whistle league of yesteryear, but if the league is moving away from giving guys 15 FTs a game Fox will really find it hard to flourish without being an outside threat.