Agree with your first point. In saying that, as much as it was nail biting to watch it did work.
Secondly, As far as I can see Joyce is having nothing but a positive impact on Arzani. Arzani is so often allowed to roam free and drift centrally, take on players whenever he wants etc. I just don't see any restrictions except perhaps the defensive duties that have been placed on him (which can only be good for him).