That is what they said, but the rules say otherwise. Flag is out every race when they hit turn 4, you still have to cross the finish line first to win.
You still have to maintain pace car speed under caution ... at least you used to. Field was locked? Field is always locked under caution, but if you cant maintain speed you lose your spots. If your motor stops, for whatever reason, you lose spots and laps until you get it fixed, it was always pretty simple ... or so I thought.
I do not really care about the details of who won or any of that, I have seen a ton of guys under different circumstances under yellow who could not keep up with the pace car, flat tire, overheating, out of gas, everything, they all lost their position if they could not maintain pace car speed. I do not know why this instance was different, other than NASCAR just decided it was.
Why are there rules if they are just ignored? This exact instance is governed by NASCAR regulation, but it was not applied like it has been done 100 time previously. This one time it was different.