I guess it’s possible, but also, from what I heard from people who are there, it is  really crowded and everyone wants to see them and they have to squeeze everything in one day. So to give everyone a chance to have a nice experience with them, I guess they have to be fast. 
She already didn’t want to do funny poses at the last con, which tbh, is understandable. I’m sure she would be fine with one or two, but if she lets one person do a funny stuff, everyone else will want their own too. And it must be quite dehumanizing.