> I'm glad they mention privacy preserving and being voluntary. It's possible to make digital ID that allows selectively revealing attributes without identity
Not without either being able to trivially let others use your proofs OR ending open computing. There is no zero knowledge proof about the slab of meat sitting in front of the screen.
That's what "The problem is it's difficult to verify all the promises are being kept, and if they're not it instantly becomes a true dystopia" is about.