The examples you give are of brains for which there is conscious experience, at least in some areas. For an existing consciousness-capable brain to have some ca

The examples you give are of brains for which there is conscious experience, at least in some areas. For an existing consciousness-capable brain to have some capabilities that are both unconscious and memory-inaccessible does not disprove the potential existence of fully-functional, non-conscious brains. Although I'd agree that otherwise functional non-conscious brains would probably be unable to communicate coherently about personal experiences/thoughts/memories/etc.