The offending interaction occurred after the interview at burning man. He did not sexually proposition anyone in the interview. Furthermore the allegations were made two years after the supposed incidents occurred, the more distant an event is in our memory the more I'm inclined to give the benefit of the doubt to the possibility of people's accounts drifting from the truth.
The issue is whether Simpson was denied before or after burning man. If it was before, which is apparently what Devaul was insisting, it really was inappropriate to take any action in my opinion. If you match on tinder with someone you once interviewed, after the hire/no hurry decision is made, then your company shouldn't be treating this relationship any different from a total stranger. Or are we supposed to keep spreadsheets of every person we ever interviewed? Because that's not in my sexual harassment training, I dunno about yours.
Think about how you would defend yourself if someone accused you of making a sexual advance in an interview after you rejected them for a job? If testimony alone is enough to get you fired, then that's a significant source of pressure to give female candidates positive outcomes even if their performance isn't up to par.