I tend to agree.
There may be a case for sanctions in the form of reprimand or condemnation, but not for a legal suit.
I don't even understand that. What is he supposed to be reprimanded about? Being flirty at a party? Oooo... what I crime. If shallow elevator talk about the weather doesn't lead to sanctions or a reprimand, then flirting sure as hell shouldn't.
Well, I would say that as the 'incident' took place at a party thrown by his employers and that he is a prominent employee, that his employers might see him as a prominent representative of the institution and ask him to moderate his behaviour at institute events for that reason.
Or, to put it another way, would you say that he should not have apologised for his behaviour (as he has done for the tother 'incidents')?