I think we should all keep a cool head here : I wouldn't call what he said nor the way he said "great". But let's not act like he doesn't have a point : For the first 3 years of his tenure this team was a mess, the coaching was a mess with Ty, the future was cloudy, really the team looked destined to an eternity of mediocrity.
It just goes to show the importance of "team culture". It is hard to change. Some player can change quicker but for others only the change of scenery can do it. The Gobert/Snyder event has had an overall very positive impact, giving many players suddenly a feeling of where they are headed to, some hope. But for Kanter it came with doubt about his place in the team, some bitterness. In the end as he sort of puts it quite awkwardly : he needed the change of scenery to start afresh, and it worked for the best.
I don't see him as public enemy, I see him more like one of countless players who need a jolt to change and just couldn't do it here in Utah.