I think the point he is trying to make is that he wasn't impressed by anything shown with Zelda. It didn't look overwhelmingly fun, pretty, smooth gameplay, etc and that if you didn't stamp the 'Zelda' title on it...Would there be as much excitement?
I agree with that notion. Obviously, Zelda is zelda and will be a fun game almost assuredly but take away the namesake and from watching what you watched how excited would you be? Probably not as much. On that sense, I agree Sorcery did look better. It's just highly doubtful it turns out better.