I think it was a bit of a leap to full on this is the reason. I think it is certainly part of it. I think the bullying itself has more to do with it. Treat people how you were treated sort of thing.
Anyway really do not like these sort of articles that try to aggrevate people with angry titles - on the flip side it was a seriously good exception to that rule very thought provoking. I think lacking the attitude it could have delved deeper but that's just me.
BTW while the above point was sort of the conclusion I think the article had much better points along the way.