However, this is a different Quad. He's not going up against people like Plushenko, Lambiel, etc. These guys are way above him in talent level, and I can bet you, they match him in their training. Sure, this was a whole lot of messiness at Worlds, but even through the messiness, there was a lot to see in terms of quads and technical content. Also, is Evan going to be as trained as he was in Vancouver,? I don't know. Especially if he re-injures himself, and give the way Evan trains, that's not out of the realm of possibility.
I put Ten's 2013 Worlds LP to the fact that he hasn't been there, in that pressure situation very many times. However, he handled it pretty dang well. However, I would say we should expect at least THAT (meaning, the level of his 2013 LP) from now on from him... and he should expect it of himself. If you watch Dave and Jenny's interview w/Frank, he says Denis is a very good student, and that's always a positive. Frank will know what to do with him to get him ready. I trust Frank.
(However, I disagree with Frank, in that I think Evan needs to do a quad in the short and at least a quad in the long if he wants to be competitive. But Frank is Frank, and I am not a world class coach.)