I think that what we're seeing is more getting back to where he was pre-injury that anything. Yes, there is improvement as well be he wasn't the same player after he got hurt. Also, I think the coaches really got after him early last year about the fumbles and it made him timid. Now his confidence - and health - are back and he can get back to playing the way he is used to.
For example, check out these highlights from the first half of his freshman year. Not only the running but the throwing motion was a lot better than it was last year. When your body isn't letting you do what you want, it's easy to get into bad habit. Kudos to Taylor for working to correct the bad habits and improve his overall game.
https://www.youtube....h?v=v_za877AcxA
Edit: Apparently I'm dumb in the head because I can't get the video to imbed properly anymore.