I just find it hard to find something negative in whatever Melo did to "sabotage" the team:
*Through his words or interviews - Did he ever say anything bad about D'Antoni or was their any reports like the Dwight Howard reports that he was unhappy?
*Through his actions or body language - The only time I saw frustration was when he had a clear mismatch in the post, and Lin ignored him. Kobe Bryant has some of the worse body language I have ever seen, petulant at times even.
*Dividing the lockeroom, being a "cancer" - Tyson Chandler is the heartbeat of the team, I've never heard one peep out of the captain to suggest something treacherous or poisonous towards Melo, than say the way the NY Jets team blasted Santonio Holmes.
*Through his poor performance - If player A has an ankle/groin/wrist injury, he's probably going to struggle out the gate in a strike shortened season, No? See Derrick Rose for that answer. Most teams in the NBA had their stars struggle through various ailments, miss games, miss practices, etc. Amare Stoudemire probably had one of his worst seasons ever until recently once he got his legs and rhythm. That's what is happening now. Even, before Stat and Lin's absence, Melo had already shown signs of picking up his game as he's completely healthy now.
Some people give Melo "too much credit" for D'Antoni's departure, like he had some master plan that he was going break x amount of plays a game, and miss x amount of shots on purpose....ARE YOU KIDDING ME? 
The guy is not that complex. He doesn't eat vaseline, cry during Ustream videos, bang MSG interns, and is a simple, happily married one woman man born in BK, raised in West Baltimore. I actually hated Anthony in Denver, thought he was fake thug punk especially his role in the Mardy Collins brawl, hated his game, thought he shot too much in the same vein Kobe shoots too much. He seemed to mature, since those days. But once I found out, there was a possibility the Knicks could land this guy, I knew we'd be that much closer to getting a Championship. As much fun as the pre-Melo Knicks looked at times last year, deep down everyone knows they were never going to win a Championship with a bunch of role players and Stat. It's time to move past all that, all the trade nonsense, all the revisionist history, the inept coaching history, and acknowledge that Melo and the Knicks are better off now, and are positioned to do great things for the next couple of years.
