That's exactly it, at least that's I think what most of the public raising of eyebrows has been about. But in the beginning of the article, the author links to

That's exactly it, at least that's I think what most of the public raising of eyebrows has been about. But in the beginning of the article, the author links to Schmidhuber, and his criticism is an orthogonal one. Namely that Hopfield and Hilton have received undue credit. I wrote a longer comment to detail what I think the problem with the article related to that notion is.