
It's entirely possible that the organizers of a convention can know about the controversy and not care.
After all, AP's most devoted acolytes still think CBS and Paramount were in the wrong and conflate the lawsuit against Peters as an attack on fandom in general. I don't see why a convention organizer couldn't come in blind at this point, go over the documents of the case and read the opinions on both sides of the issue and come to the same conclusion. Or, they could think Peters was in the wrong but that the efforts of his detractors are overkill, trying to deprive Peters of the second chance that everybody deserves. Or, frankly, they see all the messages and ultimatums (ultimata?) as things to defy, because deep down grown human beings don't like to be told what to do by strangers on the internet.
So while I'm miffed that LFIM sullied another of my favorite fandoms with his presence at a convention, I realize that the organizers have to consider a thousand planning decisions before hand, and I can understand if at the time they thought the benefits of inviting AP outweighed any possible negatives.
"Generating Awareness" is a favored tactic of the activist, but it has its limitations.