There were a lot of dice rolls ... last year, the dice rolls went Renfroe and Kike ... this year, not so much. In particular, 1B and corner OF are the sorts of positions where you expect good offensive outcomes and the Red Sox getting virtually nothing (like on an absolute level, not just "bad for the position") really screwed things up.
Even then, a world where the team got just a FEW more starts from Eovaldi and Wacha likely would have them right in the wild card mix.