I'm a bit puzzled by this. We're not talking about "workplace speech codes" here, or lawsuits, at all, so you appear to by attempting to insert a slippery slope where there's no need for one.

The case here is about a public presentation where a presenter offered up a rather bizarre, inappropriate image (a faceless woman labelled "bitch") which bore no relation to the talk he was giving, and then followed it up with a non-sequitur about it being "an ex-girlfriend."

Now, it's hard to read that as anything but misogynist, and while it might be considered an ill-fated attempt at humor, it misses the mark by such a wide margin as to make one wonder exactly what Noah thought he was doing.

Trying to dismiss it as "a bit PC and oversensitive" it another way of saying "Since I wasn't offended, I don't need to take seriously the possibility that somebody else might have been." But in this case, even that doesn't seem to fit, because putting "a faceless bitch" on the projector seems designed to shock.