I don't understand how the ref gave a pen in the first place. He was positioned about 15m directly behind Fenton, so how did he see it coming off his arm when it was clearly off his chest first.
But as a ref you'd want to be sure what it hits when giving a pen or free kick. He couldn't as he was directly behind the player. Would have thought he could have left it to VAR guy to check if there was arm contact before the corner was taken, not the other way around. And yeah agree VAR guy blew it as well.