Morris says there have been no references to the DWU since The Memory Box, yet Pakhars are mentioned (they might have even cameod, if memory serves) in that play. This has kind of been my argument from the beginning: if Vienna was to do something akin to Faction Paradox and write its own name for things, then fine. What Vienna is doing is having its own little bubble away from the DWU, with subtle DWU references (like the Pakhars), and crosses back into the DWU for occassions like The Worlds of Big Finish. That's pretty much what Benny does to be honest.