So the Mets decide the cure to their offensive woes is to pick up a career .250 hitter who is hitting .215 this year? To acquire him, they gave up a guy who had seemingly hit a wall in AA after dominating at the lower levels. My initial take was it was an overpay but now I'm more concerned that the acquisition of Johnson probably means that they feel Ty Kelly and Matt Reynolds are not capable of hitting .215.
The thinking is probably that they need help at both corners. The fact he's left handed means a possible platoon with Wilmer Flores. James Loney is left handed, so there's nothing to be gained there. However, the greater need is outfield with Juan Lagares' thumb and Yoenis Cespedes' hip (not to mentioned the prolonged slumps for Curtis Granderson and Michael Conforto).
It's a "meh" move which doesn't seem to have much upside and did cost you one trading chip (albeit a mediocre one) that could have been used as part of a package to land someone more impactful. There's no 40-man roster impact with Morris already on it. Kelly simply takes his place. That means no Travis Taijeron and no TJ Rivera coming anytime soon.