I thought he helped in some aspects in that he didn't get knocked over but yes if there was a blitz McKinney couldn't pick it up (and there's a few sacks there where the blitzer was pointed out to Mckinney) and when he did get beat, he gave up.
Now there were a few sacks I wish we could see the coaches film for as Tanny held the ball longer when he did have time. I think one was a WR screen that the defense covered. At the same time, there were a few times Tanny started to scramble and had nowhere to go BUT he ran forward. Maybe getting more moving pockets will help there.