I've no idea what happened with Baily but the Burnley yellow was overturned because that attack shouldn't have happened. The Burnley defender no longer made that cynical foul/deny a goal scoring opportunity.If that were true, then why was the yellow rescinded? It was still a clear foul. Again, Bailly was given a yellow after the whistle had gone a week ago. The rules change on a weekly basis.
I'd guess that Baily wasn't booked for a cynical foul but possibly a reckless one, which is why he could be booked after the whistle but I'm just guessing as I didn't see it.