It’s sort of theme for the era in some ways...the zygon two parter, the stuff with the monks. Even the regeneration two parter (never have I forgot story titles as fast as this era xD) There’s a lot of back and forth political commentary from both sides of the political spectrum, and the middle. Even prior to capaldi there’s stuff bucking the trend...multiple episodes that are actually father positive episodes (including one written by a gay childless conservative....that must boggle minds in some areas) which is pretty bloody rare for TV dramas and kids T.V (comedy fathers who are idiots, absentee fathers, yup...ones that save the day? Rare.)
Doctor Who has recently been very politically daring, but no one noticed till Rainbow Lass tunes up (this is not derogatory, just in keeping with various doctor nicknames..scarecrow, fancy pants, chin, etc...and I was looking at the costume a minute ago. ) right now. It’s very brave writing, even if I am not quite sure how I feel about some of it. O.k....everyone must have noticed the Zygon two parter, it was subtle like a house brick...
I thought the Zygon two parter made me think of ISIS as the story unfolded.