Sure for knowledge sharing about tribal knowledge or undocumented plans I see the value of having a person reviewing, but a lot of other stuff that comes up in pair programming can probably also be managed by AI like what are best practices, a bug you might have missed, evaluating alternative solutions, etc.

People are incredibly varied on code reviews too, I can see where some standardization on what should be blocking and what is best left as a suggestion could accelerate things in some cases and prevent issues in other cases.