It's a little bit embarassing, and like some said it is his second camp. He should have known better.
BUT for all intents and purposes he's been the model of character this offseason and up to this point Isles management was apparently super pleased with him.
He was apart of the Biosteel camp, he was flying out to Long Island to work on a charity over the summer, was apparently a model citizen at the prospect camp all last week, and was apart of an Isles golf outing event a few days ago.
So I suspect the Islanders probably had a talk with him last year about his apparent attitude issues (which I've always been a little iiffy on the severity everyone else was convinced of), and this was his response. He's late, and the Isles say "well you've done a good job but that doesn't excuse you from this. Go home and come back next year and continue to show us that you can be a professional".
I think given Ho-Sang's actions this summer, he'll learn. And I'd love to see him shred the OHL with Niagara this year.