That wasn’t really the Jedi council’s fault.

I don't think anyone can seriously argue that Anakin's skills were below the level of a master by Episode 3. They were being stingy in no small part because they hadn't wanted him trained as a Jedi to begin with. They definitely didn't want him as a peer.

They were doing their best to appease the Chancellor, not knowing at the time he was a Sith playing them.

Sure. They were playing a game of compromise, because they were too fixated on incremental victories and blind to the end game. That's what ultimately spelled their downfall.

The council were a bunch of fucking idiots (Windu especially), but this was one of those times they actually chose the best, worst option.

I don't think it would have made much of a difference. The Jedi were doomed as soon as they started surrounding themselves with Clone Troopers on active battlefields.

But even beyond that, the ultimate sin of the Jedi council was the (attempted) extermination of Sith Lords. They reaped what they'd sown. While Anakin was absolutely a whiny little shit, he wasn't wrong when he proclaimed "From my perspective, it is the Jedi who are evil". The Jedi held dominion over the Old Republic. The Jedi policed the Galaxy and imposed their orthodoxy at saber-point. The Jedi persecuted anyone who used the Force heretically, in no small part because of their own fears and megalomania.

It was the Jedi who unwittingly created the Galactic Empire entirely because they could not conceive of a Galaxy that wasn't firmly under their control.

"Oh that was just the gas interacting with its kuiper crystal. It was fixed before being given to Rey." - Disney