Doctor Who is really, really, really, really not that kind of television show.
Books and audio stuff might be different, but the show does not care one whit about that kind of canon intricacies and archaic minutiae.
And Time War Daleks were supposed to be them at the height of their power, with their own Hand Of Omega level stuff.
Timelords and Daleks were using these kind of weapons and ripping the universe apart doing so. Both sides had gone completely insane. Okay, one side started there already, and the Timelords were always halfway there anyway.
It's the Timelords that started the war in the first place in Genesis Of The Daleks.