I hope the Wendy vlogger who reviewed the game at the sty does another one. It was one of the funniest I've ever seen.
I thought it was from all the stuff being thrown at the window of the corporate box that had a Wendy fan goading when they scored. I bet he didn't get thrown out like he would have if he behaved that way if he was sat in with the ESL fans, as you get away with more when you pay more.