The macabre background music as she's doing her interview, when she comes clean, did seem to conflict somewhat with Auntie's push for woman and minority rights in using the I'm a strong, educated Muslim woman, who can play anybody; gangsters (how did she hook up with Justin Timberlake anyway? This is a head-scratcher for me) and Mi5, the Norman Tebbit Nazi look-alike.
Then you have Deepak Sharma getting the bukkake treatment from Budd ... I trust you, a man of integrity, etc. The name to me suggests he's Hindu, probably but then I'm not an expert in such affairs. For your average Briton though, he's brown and looks Muslim, so he's cool in this program. Ergo, he's trustworthy. He British, whereas I'm not convinced Nadia is/sounds like a home-grown lone wolf (is she?).
So yahh, maybe there's an element to what you're saying.
Goes back to what I originally said about being a fly on the wall when Auntie execs have read the draft script and met teh writer to discuss how it'll be BBC-ified ... the starting with family, the ending with family after counseling and they all live happily ever-after. Pure Disney.