Hunter is struggling because he can't create his own shot. In a system where he can get open looks he might be better.
Yeah, this is extremely evident. With no real team cohesion or set plays (outside of PnR), RJ is struggling to do what he does best. Hopefully the Cs can develop him well.
Edit: The cross-court pass from Rozier to Hunter on the last transition play is exactly how I envision Hunter getting his shots.