Alas, no amount of "epic" makes up for the fact that it was also incredibly illegal and dangerous. Other YouTube creators have been trespassed for doing less so, epic or not, he no doubt knew the risks. That said, to answer the other comments, his videos were not removed from YouTube as a result. I'm also not sure that he was arrested as, one would assume, that would put him in a position to be risking quite a lot in continuing his explorations (Disney or otherwise).
You are correct, he uploaded another Disney property video after Disney Quest. That was in September. He has uploaded other "exploration" videos since, but of non-Disney locations.