The third. That his presentation really was acceptable, and people are making issues out of nothing --just to prove that the far-right should not have a monopoly on prudes and squares.
Women really are underrepresented in programming in the US, so we don't even have the refuge of saying it's unprofessional but harmless. This talk isn't a huge problem in itself, but it is one tentacle of a monstrous beast of a problem.
And I'm not saying we should crucify Matt or even give him the stink eye, but I do think we should make it clear that we're not OK with that kind of talk.