I originally posted that they can and should ignore this because most wrestling fans will turn a blind eye to Flair's "bad behavior" (something I still think is true). But that was before I started reading about the episode and the new details that have apparently come to light.
Edit: I'm reading Twitter now (I haven't seen the episode yet). Did Flair sexually assault someone? Yeah, that's not good at all, if that's what happened. I was under the impression that he just pulled his dick out and flashed everyone on the plane - not that that's much better, granted. Regardless, if he shows up, I still think he'll get a monster pop. Wrestling fans, by and large, are very hypocritical and tend to give a free pass to their favorites IMO.