Been to every Katy tour (and even went to her first ever UK show at 250 capacity Water Rats in 2008 dd), was toying with Vegas at one point etc. But the thought of being in the audience to enjoy what should be a feel good show, celebrating her career would feel so forced right now? The last thing I want to do is line the pockets of those gross men who were congratulating Luke recently.
Also, since nothing has been addressed around the issues and failings of 143 and her being the literal entertainer we've know her to be, I really wouldn't put it past her to just have a giant elephant on stage with her at some part in the show, pointing at it and being like "lol guys! but here I am!"