[JMT1985]

Which is why I’m even more baffled why RTD has left himself such a gaping plot hole for future episodes. Whether they’re living in France, in London, or popping to Mars for a holiday at the wrong time, their lack of appearance in any serious Earth-bound threat is just going to be awkward. He’s usually a very thorough writer, and I’m surprised he didn’t come up with something just to lock them away (for now). Maybe Rose Noble will be relaying some news to 15 to help tie up the loose ends, but as other posters have mentioned “they’re living in France, soz” is hardly an excuse!

Well do you remember the final series of Torchwood, Miracle Day, and the doctor was no where to be seen, and all of the story of Miracle Day was never once mentioned in any episode of Doctor Who, it is as if the whole thing never happened. Moffat who was showrunner of Doctor Who simply ignored why the doctor didn't try to help and why Rory, Amy or anyone they encounter on earth didn't mention that extraordinary event in their lives.

So Doctor Who has history of ignoring things when they need/want to.