He says he's not a practicing muslim. He also says that although his wife is a practicing christian, he himself is not religious. He was born in Britain and if he identifies as British and gives me no cause to believe he doesn't mean it, then that'll do for me. His views on immigration seem ambiguous at the moment so the jury (me) is out on that until he clarifies his position.
Personally I don't see any logic in someone who is not religious marrying someone who is, unless maybe she's a really good
shagcook. No big deal IMO.