I feel like values are defined over outcomes, while biases are defined over cognitive processes.

You could value a bias I suppose, but then you'd be valuing executing particular algorithms over like, saving the world. If that's the case, I think that the people arguing for a bias are looking for an easy way out of a problem, or more attached to their identity than I believe to be useful.

Not that I've reflected that much on it, but that's my intuition coming in.