The Panopticon/Dimensions in Time: Is there a coherent reason for it not being canon?

Looking at Dimensions in Time, the only reasons seem to be that in Army of Ghosts, a later story, Eastenders is shown as a TV show, and that it violates Eastenders continuity. But both of these ideas have an explanations.

• In the case of the first, We only see a clip from Eastenders in Army of Ghosts. Do we see any of the same characters seen DiT in this clip? If not, it could be that the show is brand new in Army of Ghosts, and that the characters from the show in 1993 were never fictional characters.

• The second objection is thrown out, according to T:NO RW.