Jovetic is obviously, and understandibly, pissed off about being removed from the Champion's League squad for the remainder of this season. You wouldn't want him to be anything other than annoyed by this and, whilst it would have been better if he'd kept his council and said what needed to be said inhouse, you can understand why he has made his feelings public.
What Jovetic needs to understand is that, ultimately, this isn't City's fault, or City's doing. The blame for this whole sorry situation falls on the doorstep of UEFA. It's their, frankly corrupt, FFP regulations that lead to our punishment. It's their "reinterpretation" of those rules that caused us to fail them instead of pass them. If he wants to direct his ire in the correct direction then a strongly worded assault on UEFA, FFP and those who implimented those regulations, would be a wiser approach. A top European player drawing attention to how UEFA's FFP rules have impacted his career would make other top level players take note, and potentially put some pressure on the clubs.
What Jovetic also needs to accept is that he too contributed to his own downfall here. His injury record (not really his fault) and his struggles to score goals and make a big impact (his fault) lead to him being the "17th" foreign player. If he'd been in top form, and playing really well, then you suspect he'd have stayed in the squad and an underperforming Dzeko would have been more at risk.
Jovetic's argument that he didn't deserve to be removed from the squad is a fairly sound one, but it ignores the fact that no-one actually deserved to be removed from the squad, however (assuming Bony was always going to be added) someone HAD to be removed. If not Jovetic who else does he believe should have been removed? Who else "deserved" to be left out? It's an easy position and argument for him to take up, but it ignores the difficult decision that HAD to be made. Someone was always going to be left disappointed. Jovetic was left vulnerable because we had 4 foreign "strikers" to pick from, which he cant be blamed for. He was left vulnerable because his deeper role could also be covered by Silva and Nasri, which he can't be blamed for. He was left vulnerable because he hadn't been performing to his best this season, which he can be blamed for.
You'd hope this kick in the teeth would actually spur him on to prove Pellegrini wrong, that he would play to prove him wrong, however I get the impression he'll be lacking motivation, and that he'll be actively seeking a summer move away from City. A shame but, despite having promise when he arrived, it simply hasn't worked out for Jovetic at City and it's probably time to cut our losses and bring in some decent money for him, and a decent replacement.