Mr Awe wrote:
But, to suggest that the Doctor shouldn't have intervened before is just preposterous
I don't recall anyone saying that at any point in the discussion. Just like no one has said the Daleks weren't evil. This episode, however, directly stated that the Doctor's interactions with them upgraded them from being evil to EEEEEEEEEEEVIL!!!!!!
. And yes, there is a sizable difference between the two, no matter how some posters would like to downplay them.