This isn't a biography of Turing doing that. It doesn't seem particularly relevant for an article about some documents.
And before you tell me "gay rights aren't a political issue, human rights go beyond politics": a new law being passed by politicians is literally as political a subject as it gets.
But if you think that's editorial and political if mentioned at all, despite being endorsed by all sides of the parliament, I guess that's a valid opinion. It's certainly the case that many people claim that anything objected to by a single person is political. I usually find that the BBC is more clever than that.