I didn't comment on any of her suggestions other than to say I've seen them in place already. So if we're not happy with the current proportion of women in tech, the industry should explain why, say, current mentoring efforts aren't working.

The answer could be "it works, but there's not enough of it" I guess.

I mostly brought it up because tptacek wrote, "It's unsurprising that a Google engineer would believe that gender balance can't be addressed without fixing the college pipeline..." and I thought the recommendations for helping already-in-engineering women pointed to a more complex position. Though perhaps that position wasn't communicated, at least not clearly enough.