All his actions are added in after the fact, storytelling-wise. He already didn't become a master, and all later Clone Wars stories can have him do whatever they want, that fact will not change. It could conceivably further explore the already-present themes of why he didn't become a master despite his accomplishments, but I've seen both TCW and RotS, and neither one had much interest in introducing that theme, much less exploring it. Anakin isn't upset that hes not promoted to Master because he earned it through his works and successes. Hes upset that the incredibly prestigious position he's gifted after only three years as a Jedi Knight, in an organization of ten thousand, doesn't immediately grant him a title upgrade. Because title is all it is. A rose by any other name. He's already gifted a seat on the goddamned Jedi Council! He's one of the most elite Jedi in the galaxy, sitting on the most prestigious seats of power they have, and that's not enough. He feels spurned because he didn't get a new faceplate for his desk. That's not the Jedi insulting him or mistreating him, that's him being petty and greedy over inconsequential things.
Also, sure, you can't tell the hot-head he didn't get promoted because he's a hot-head and expect him to not get mad, but that's also the hot-head's problem. Self-introspection is the key there, which he should realize at being told that, even if it might take effort and time. Instead, he just agrees to go slaughter kindergartens. He was already incredibly troubled and in insane turmoil, sure, but you can't fault the Jedi for not helping with that when he never told them anything about it. Can't help a person who doesn't want to be helped and all.