Impossible to get career growth in Data & Analytics, HR (P&O) has FAR TOO MUCH SAY on promotions - Director Mars Employee Review

Extremely political at the VP level HR has way too much say on things like career growth - they don't provide anything positive on this, only putting up blockers. They don't understand the business AT ALL, like data & analytics -- they're clueless about talent (pay, career trajectories, etc) yet act all high & mighty and flex their "muscle" more often than they should. Why is HR doing nothing but blocking things rather than looking for ways to promote long-term career growth? It's amazing to see someone so clueless have so much impact. Other companies & industries don't have such blockers in HR like Mars does. A shame, lots of D&A talent leaving because HR is terrible.