I posted a little thread about it on Twitter, so I'll link to it here. Easier to see the videos that way.
Kelly's "we gave them a heads up to watch out" spiel is a load of crap. Not only was Brown moving (something he's clearly coached to do by the way), but three of the back four are retreating prior to the ball being kicked. They weren't alert at all.
Link: https://twitter.com/greg2126/status/1178163248245329920?s=20