So, you do agree then, that Chris Chibnall, the "new producer who's taken over Doctor Who" when Moffat left (and ended thus the last remnant of the RTD era standing) had a "goal" to "try and grow the audience" by NOT focusing "on telling new stories that are accessible to people who haven't been hardcore fans, while not alienating the existing fan base" but instead produced the Timeless Chidren overarching arc, which basically "wallow(ed) in continuity details" of the Doctor's origin, in an effort to "bring mystery back to the Doctor's whereabouts" but instead make that said origin an elaborate mystery that, in the end, did not achieve much beyond divide the fanbase for no apparent reason.
Nevermind, also, the fact that the Doctor in that very, very first episode was a mystery to everyone, but to himself. Making the character himself wonder about who he is but not actively seek it out is all kinds "I haven't REALLY gone far with my fanwank, I just obsessed over The Brain of Morbius as a teen!"