Those stats mean nothing to me. First your representation of them is false, stating:
We can take it further, talking about how Melo's +/- on the season is 0.4. So even though Melo is getting the most minutes and the most offensive production on the team BY FAR the team is barely beating their opponents when he is on the floor. Are you gonna put that all on Melo's teammates?
Melo regularly takes terrible shots, is lazy about going to the basket, settles for jumpers way too much, makes bad decisions, argues with officials and gives up points in transition. In my eyes he's tied for worst play of the season with Bargs and JR's inexplicable 3pt shots when the Knicks had the final shot available, when he nonchalantly dribbled the ball up the court and hoisted a 1 on 3 deep shot off the dribble...
As usual it's the debate where fans of an individual argue with fans of the team, Team Melo aka Team Starbury who blindly follow one player regardless of his faults. I'm a fan of the Knicks, by proxy I like Melo and was impressed by his individual performance, I don't hate on him at all, and my criticisms are not for no reason. When I see Melo I see a great player who doesn't regularly play to his ability on both sides of the ball.
Is Melo a great player? Hell yeah. Is he the best player on this team? Obviously. Is he the best defender on this team? Arguable but there could be a case made for it. Does he play as well as he could night in night out? Nope. Is that all his fault? No it's not all on him but he could do a lot more.
That'll be my final word on the matter.