If Gunn had deleted them back when he took on GotG, they could release a statement about how he used to go for shock humor, realized years ago how hurtful it was to other people, etc. Maybe they still cut bait, but it's a better shot than leaving it up for sure.
One thing that bothers me is that people absolutely went digging cause of how he was talking about Trump and they were looking for a scalp. So it's basically the sort of vindictive, feigned outrage that those people imagine all of #metoo is, and it just got rewarded.