From what I've seen of Conan on twitter he hasn't changed at all and would be a detriment if he returned. Pretty grim reading. https://x.com/TroutmanThe/with_replies
I'd say anyone who is upfront and makes an apology deserves a second chance, with the proviso that you only get two chances.
We all say an do things we regret, we all do an say things we regret, when someone is out of order its usually said in haste or without true feeling, were all Human remember these four life values Hate, Hurt, Heal, Togetherness, remember, sticks an stones, Forgive an Forget.