He changed his pivot foot at least twice, and maybe three times! When his jump stop happens, it looks like he stops his right foot (although you could argue it was a slight shuffle and that his pivot foot was really his left). In any event, then it's his left, then it's his right, and then it's his left foot again. No real advantage gained, but I have seen tons of travelling calls where there was no advantage gained. You would assume one of the officials would keep an eye on the player with the ball. One of the reasons he changed his pivot foot at the end is it looks like he was going to pass to a player who kind of got rubbed out and they could have called a defensive foul call, so they might have swallowed their whistle there. But to swallow their whistle on the two travels before is not excusable.