No, he made some far fetched statements that people (rightly) objected to. But since the consequences were not satisfying to some, he was falsely accused of sexual harassment on account of his views. Yes, saying that minors should be able to consent to sex with adults is something that a lot of people, including myself, are disturbed to hear. That said, calling this sexual harassment is unambiguously a false accusation.

From what I recall it was more that some people (not sure if they were students) were feeling harassed by his behaviour.