You are forgetting that there was some doubt even among the heroes that Doom was even telling the truth and was protecting Wanda's reputation instead. In fact, since Doom was in Hell at the time of Wanda's sudden change when talking to Jan, it's doubtful he had anything to do with it. Mostly, it was just bad writing by Bendis.
If Axis does make some kind of retcon, that would be ridiculous to have that reveal to be true when it's going on 10 years after the story was written.