Uh. Cool story, bro.
A while back there was a clip summarizing the past Doctors' (and companions) thoughts on having a female Doctor, going as far back as asking Troughton about the idea. Out of all of them, Colin Baker seemed to be the most enthusiastic about the idea, and so among the Doctors most likely to be the first to watch Whittaker. Like many other fans, his Doctor was my least favorite, but his boundless energy and cheer for the franchise make me a fan of his as an actor and former Doctor.