I don't speak French, and it was a French interview. Someone posted it on twitter:
https://twitter.com/habsgirl4life/status/616322576860577793
I don't know the context. Someone in the comments says Burrows later joked that Kassian "Must have a bad mattress". Either way, it obviously shocked Burrows enough to comment on it. And I imagine Burrows is the type of guy who has seem some pretty horrendous stuff over his years. I doubt he is exaggerating when he says that Kassian literally had lumps the size of tennis balls in his back. That's not a normal healthy thing. One commenter says that Kassian needed a good massage therapist... yeah, right. Cause an RMT will fix those giant tennis ball size lumps right up.
Point is, Kassian clearly legitimately has some back issues COMBINED with his off-ice issues. We do not know how bad those issues are. So if this deal seems really bad to some people, then instead of thinking Benning is a mental case, why not think, "Wow... Kassian REALLY must have been bad for this deal to go through". Yet, people automatically jump to the conclusion that Benning must be loco. Is it not possible that there's much more we don't know? It's not like Benning made this deal in a dark room by himself. He obviously got input from Desjardins and other coaching staff, and they likely told him that Kassian wasn't going anywhere either.