Other mistake: Prior to the fight, it showed the champ at 33-0 with 30 KOs, but they stated pre-fight that he has never been the distance in any of his fights.
Only the ref can stop a fight. If a cornerman throws in the towel, that won't stop the fight unless the ref decides it does indeed need to be stop. When the ref stops a fight early, that's recorded as a KO for the winner's ring record.