Ethan Klein is not involved in the allegations. Ethan contacted Andrew Callaghan by text message.
Andrew told Ethan that he is currently in a psychiatric ward. Andrew confirmed that he knew the two women who made the allegation videos. Andrew confirmed that the events did happen.
https://www.youtube.com/watch?v=XFlypIV1gp0
Dan Harmon is still Dan Harmon but I think his apology and admission of fault with his situation a few years back is the template for people who do actually want to atone. Idk if harmons was that or hes just smart enough to say the right words but once you do something fucked up its about as good as you can do as a response. (I dont remember if harmons stuff was sexual also or if it was more about his abuse of power that he used on a female writer. )