If you've been following the field at all (i.e. who the paper is aimed at), the sentence is obvious and non-controversial. There have been many tasks where deep learning has even exceeded human performance (a stronger claim than that sentence).

>Even the most state of the art computer vision/object classification algorithms still don’t generalize to weird input, like familiar objects presented at odd angles.

"some x are not y" does not invalidate "many x are y"