I wish him the best. Tend to like him. But he had become so boring and without that need-to-kill instinct.
As well, as with anything else at a high level, a few years away from that "perpetual motion" can be extremely showing. I'm sure he's been training/keeping active, but I think he's been wrestling with whether he just wants to stay done.
When that mindset begins to creep in, you're in trouble.
However, as I say, he's a likeable guy and obviously very talented and athletic, so I hope I'm wrong.