The purpose of having him on the roster this year is to have him on the roster 2 years from now. Whether that's a worthwhile purpose is another matter.
I'm not necessarily disputing any of that, but he made the best baseball play by anyone on the team last year when he caused the balk against Milwaukee that won that game. One of the best plays of the year by any player on any team.
I think the replay system should be tweaked. The replay viewers in New York should not know the call on the field. They should rule safe, out, or inconclusive. Only if they rule inconclusive should the call on the field stand.