Articles like these just make me think that's its a real possibility that not everyone has consciousness. Like some people are no conscious of their own visual imagery, maybe some people are not conscious at all.
Kind of ironic given the bit of the article that focuses on P-Zombies and how they don't work because they have to be indistinguishable. Well, what if P-Zombies are real, and they are distinguishable, it's just not obvious because the P-Zombies grew up in a world where people talk about consciousness and lots of people around them have it.