This didn't sound like an inclusive equal-opportunity roast, which could have been funny. If it had been, he would have been making fun of men in tech as well. As it stands, it seems like he was only making fun of the (few) women present, singling them out for ridicule.

If they had hired a comedian who singled out men in tech as neckbeard virgin nerds, and played on stereotypes, I think it would be almost as unacceptable. "Unacceptable" because it's an obnoxious stereotype, "almost" because men are still the majority/power group in tech and can take it more easily than the outnumbered female minority.