Meanwhile, the Jedi Council, throughout Star Wars, has blamed everything else but themselves, and even Obi-Wan couldn’t admit it because while he knew it to be partly true (via Qui-gon), it clashed with everything he was ever taught. Qui-gon specifically told him to trust ONLY IN THE FORCE which is a lesson that goes beyond the morals of either the dark or light side (correct me if I’m wrong on that one) and he took that lesson the wrong way until it was too late.
Obi-Wan was pissed that Anakin betrayed the Jedi order but at the same time, was well aware of how hard they were being on him, despite Anakin’s already disturbed background. And we can see in the [original] trilogy that Ben Kenobi has a much broader perspective on things. Much less conviction than the Jedi Council before him.