>last year he infuriated faculty and students alike when he seemed to disparage the innate scientific abilities of women

No need to read further. Bullshit. The question was not of abilities, but of motivation. Women in general need much more motivation in order to do anything, including science. "they can, but they do not want to". I am sure there are multiple studies, the recent one coming to mind is State of the art in end-user programming, due to appear in ACM publications. Look how they suggest to target females.

Another fact is
In contrast, men (as a group) are superior to women on:
(i) mathematical reasoning, especially geometry and mathematical word problems..., but I do not remember Summers saying something like that.