I just searched for Doctor Who news and found a bunch of articles dating all the way back to August saying pretty much this. The spinoff will be next year, at which point Disney will decide if they want to continue with more Doctor Who. If they bail out, the BBC will be continuing it without Disney. I’ve never gotten into any of the books or radio shows or whatever, so I don’t know who this auther is, but someone should tell him how to use the internet to find information before making wild statements. One example, among many:

https://comicbook.com/tv-shows/news/doctor-who-bbc-future-confirmed-ncuti-gatwa-disney/