The CA/B is basically some Apple and Google people plus a bunch of people who rubber stamp the Apple and Google positions. Everyone is culpable and it creates a self-fulfilling process. Everyone is the expert for their company's certificate policy so nobody can tell them it's dumb and everyone else can say they have no choice because the CA/B decided it.

Even Google and Apple from a corporate level likely have no idea what their CA/B reps are doing and would trust their expertise if asked, regardless of how many billions of dollars it is burning.

The CA/B has basically made itself accountable to nobody including itself, it has no incentives to balance practicality or measure effectiveness. It's basically a runaway train of ineffective policy and procedure.