It is sort of OK, quite enjoyable to watch, but after a while you notice that there are almost no male participants. Now if the study of the early Christian church in the UK was dominated by women, that might be just about alright, but its not. Many of the most important authorities on the subject are men, but their contribution is not included. This is common nowadays with any BBC documentary that is not pure science.
This on its own is enough to make it clear the series is more of a political vehicle than a work of scholarship. When a distortion like like this is so obvious, you then have to ask yourself, what else have they twisted? Not being an expert on the subject I cannot say, it may be accurate, or it may be complete bunk. It certainly can't be trusted, it cannot be treated as educational.
A small point, when Dr Ramirez is speaking to camera she is fine, and interesting, but when she is doing a voice over she adopts this soupy 'reading a story to a 4 year old' style. All the BBC's women documentary presenters do this now. I wonder who on earth thinks it's a good idea.