That's true, barring shenanigans, but you haven't really had contact with the Doctor yet, only the hypercube message from the relative future, and don't expect to meet him in this. So, Gallifreyan Mean-Time is safe. For now...
It does mean we're retconning the ending of
Engines of War, which is okay, because that was kind of meh.
Bluetooth:
What? The Daleks named their Temporal Exterminator 'Voldemort'? Nope, nope, nope, I didn't say it!
Fun fact, I've never
Harry Potter and only seen the first two or three movies. So, I have no idea.
Trace:
He didn't relish the idea of going up against the second greatest threat in the galaxy on his own...
Daleks are
second greatest? Who's the first?