Part of this post is very similar to a famous reply from Dropbox launch on hb when someone said roughly: "why do we need Dropbox, here's steps to roll your own".
The average non tech person doesn't know what an http API is.
The average non tech person doesn't know what an http API is.
Maybe there's a killer unicorn app hiding in one of those wafer thin wrappers, but OP's point is precisely that it's disappointing how wafer-ish all these "exciting applications" actually are, relative to the massive sense of expectation that existed only a few months ago.