I agree with you about avoiding it as much as possible.
That said, Cora is going to play JD in the outfield fairly regularly, partly to appease JD and partly to rest the outfield. I can't really argue with that line of thinking either. Cora's thinking might change if JD starts hurting the team with his defense.
IMO, however, it's not going to be so much the obvious flubs that will hurt the team, but rather the harder to recognize plays that he just didn't make.