Eh, I think Irving is an enormous tool, but I don't know that he is as vindictive and conniving as is being portrayed. He proved himself to be completely unable to lead and there is no reason to believe that won't continue with the Nets.
The biggest issue I have with him is that he (and AD) basically turned our title contending roster into just a decent playoff team. If he were a 'good guy', he would have pushed the Nets for a s&t so we wouldn't be left high and dry. We certainly have room to grow, but without the ability to stay above cap, we lost our ability to keep/add talented depth.