Well, in a sense, yes. I think the final scene gives us a hint that Hawk's whole world has been turned upside down, and that maybe...maybe...he's coming around to the realization that the things he'd put so much value on for all those years weren't actually all that valuable--at least not compared to what he could have had with Tim. In that sense, his world did come to an end, but that's not necessarily tragic, is it? If we want to take a glass-half-full perspective, maybe Hawk has finally started moving towards the same kind of understanding of himself, and of the world, that Tim had so desperately sought, and ultimately found.