To clarify, Giannone said Andersson would never again play for the Rangers?
I'm not sure those interviews really said that he had a mental health issue. I took it more to mean that he was struggling with the situation and mentally down on himself, the Rangers, the process, etc. Not that he realized "oh **** I have severe depression" or something. That said, even if he did have a legitimate mental health issue it's probably not something that's always easy to see.
This all still feels like there's something not being said about what's gone on. Players usually don't just leave the team and seem prepared to sit out of playing hockey for an entire 1.5 years if necessary. Rightly or wrongly Andersson seems very convinced that he was wronged by the Rangers in some way.
I'm going back on forth on this myself...it's tough to think the Rangers actually did something really beyond the pale, you'd think it'd have come out one way or another or that there'd be more whispers about it being an issue with the team around the league, but I also don't feel completely comfortable just saying Andersson is all to blame.
Just weird all around