I'd say you're correct but I'd put it slightly differently - she's either culpable and a knowing liar or she's so stupid she could not see, from the massive amount of evidence she was presented with over multiple years, there was a systematic issue with the prosecutions.
She reminds me of what is so wrong with Britain. She's clearly a member of the establishment (privately educated, Anglican priest, etc) who was appointed to a job that was beyond her capabilities. I met so many "Paulas" during my working life in Britain - the incapable talentless middle-class establishment. I'm so glad I don't meet people like her any more being, as I am, a fully paid up American now. Before anyone starts - I fully acknowledge the myriad issues we have here.
Another thing that strikes me about her is she's supposedly religious yet at no point does her faith seem to compel her to stop all the fibbing and just 'fess up to either her hubristic idiocy and mendacity or complete uncaring foolishness.