Or do think there's something special about the person that makes them flip tails more often?
Yes, that’s the conclusion that the scientist has come to. The chance of getting 20 in a row is so extraordinarily unlikely that it’s reasonable to conclude that the chance is not 50/50 for that particular surgeon.
Google may not have enabled them in your region. Here in the UK they just appeared for me one day, a few months after I initially saw screenshots of them online. I didn’t do anything to enable them.