As I said in the post that you responded to - that bruise can easily be covered by makeup. She still wouldn’t be able to do any gigs that required her to have a wet ass, I suppose (which may or may not be a significant portion of her gigs). Though it appears when he removes some of the makeup in this video that Dermablend, at the very least, is fairly resilient. This obviously isn’t a long term solution if the bruising lasts more than a few weeks/months.
But yeah, I hadn’t seen the bit about her having permanent damage (since the only linked article that mentioned it was the butt article, which I only clicked to see the bruise) from it as well, which changes the situation significantly.