Totally a hunch, but I felt last year his midfield minutes were held back because of his defensive positioning around stoppages, and too many of that type. Currently I do wonder if we feel fragile in that space without Gus, with Viney playing a more defensive role at stoppages this week. Kozzie is maturing and this with it, but I just have that feeling this is a limiter to extended minutes and not getting caught out by oppos working him out. short bursts to catch them off guard and whatnot.
Tl;dr he's learning, and getting there after development last year. is a weapon.