I would argue what you call "freelancing" is him using his brain to diagnose a play and be in the right position. And in the case he was wrong, he has the ability to quickly correct and the speed to catch up and still make a difference.

This with the exception of the huge blown run in the Eagles game. He hit the wrong gap, did not keep contain, and could not catch up. You can see it here:

Miles Sanders 82 Yard Touchdown Run | Eagles vs Saints - YouTube

Tuttle was double teamed by #62 and #67. Kwon needed to fill the outside gap between #62 and the sideline, turning Sanders back into the interior of the defense. Instead, he tries to slide inside behind #67 and Sanders has a clear lane to the end zone.

SFIAH