Originally Posted by Lord Smexy:
“If you say so, but I think "established continuity" has always been a funny thing in Doctor Who on a "make it up as we go along" basis. Things such as the original idea supposedly being that the Doctor had built the TARDIS, Susan naming it herself rather than it being an official term, the Second Doctor stating that Time Lords could "live forever, barring accidents" which was literally swapped around afterwards and followed by countless other retcons of how regeneration works, and the entire rewrite of the Daleks' origins... it seems silly to attribute it solely to Moffat when plenty of others have done it before him. Terrance Dicks, Robert Holmes, Douglas Adams, Andrew Cartmell, Russell T Davies are all guilty and I'm sure Chris Chibnall himself will have his own ideas on how things work in the Whoniverse.”
But there is a massive difference, at that stage the show still hadn't properly established its universe and what the show was about, It was meant to be a more historic show rather than aliens, but that changed.
Your Second Doctor example, is an exaggeration on his behalf as we all do to prove a point, even if it wasn't an exaggeration a very minor change for what was the first we have seen of the Time Lords. So again the history and what they are isn't properly established.
It is all good to change things which might be iffy slightly, nothing wrong with that in a show like Doctor Who, but SM definitely interfered with a lot of the shows continuity, more than any other writer. The biggest was the hybrid, and this goes back from the beginning, this is the Doctor's belief, what his character stood for all those years. That was the one thing i was most upset about.