To be honest, I feel a bit sorry for Nathan. He's an amazing competitor but he is, after all, only 17. In the past few weeks there's been a ton of hype about him. As good a competitor as he is, that's a lot to live up to, especially given his boot problems. People are/were expecting him to win here and projecting him to take gold at the next Olympics. As much as he wants it, it's a pretty big adjustment in a short period.
You expressed what I've been feeling, too. Nathan seems like a very grounded person, but the short program at Worlds showed he's not totally immune to pressure. And if the past few years' experience with Gracie Gold are any guide, I think it's safe to say that the Hype Machine is ruthless and far more concerned with boosting ratings than with a skater's well-being. Let's hope Nathan is able to rise above all the bullsh*t as he prepares for the Olympics.