By the time they threw the caution most of the cars were past the wreck, so why bother? I would have preferred to see the race finish with a checkered flag instead of a yellow flag.
Years ago the drivers actually used the noodle in their heads to figure out whether or not it was safe to race to the caution flag. Then drivers got stupid so NASCAR had to create a rule to prevent them from extreme acts of stupidity.
I don't know if Harvick or Jr. would have gotten by Logano, but that last caution turned a 3 hour snoozefest into a anti-climatic win for Joey Logano. And before anyone brings it up, in 1998 I was super ecstatic that Dale Sr. won the 500, I just wish the last lap hadn't been under caution, but they did race back to the yellow in that race.