He is partially correct. He did win 2 trophies at the club. So in a sense, he was not a complete disaster as compared to others. However, his football was crap and in the third season, he had destroyed whatever he would call as "achieved in 2 years". The media gives him much more stick compared to others. So that's the only thing he could complain about.
Anyways, all this is nothing new about Jose. He was this kind of a**hole before coming to our club and he remains so even now.
He certainly likes to complain about differential treatment, but it's a result of his manager persona and he's well aware of it. It's hardly a vendetta against him, he could easily tone himself down and play the role of the "happy one" or whatever it was he tried, and he'd have more leeway, just doesn't suit him.
I wonder what a young Mourinho would think of the current one if he had a glimpse of the future after he fecked off to Real Madrid, i doubt he'd be all that impressed with how things worked out. A wealthy man, no doubt, and he has a fantastic career to look back at, but now he's more or less irrelevant at the highest level and what he did several years ago is easy to forget in modern football. Took the piss out of other managers lack of trophies, how they are treated differently in terms of failure/success and how comfortable life is at other clubs, gets himself sacked at Tottenham after 1,5 year, just before their league up final, and he's now at Roma, who finished 7th last season, doesn't seem to be all that comfortable when you're a knobhead.
One day he's bragging about second place with Manchester United being among the top achievements of his career, the next day he's back to mocking others for how they are measured and it's the trophies that count, his criteria for success changes on a daily basis. It's a shame things ended like they did, i had hopes that he'd settle down at the club, but he ended up being a bit of a disaster where the negative effects could've been very damaging if he'd stayed any longer.