Jussi made a very strong point several times in different interviews that DGWT was completely separate from PDGA. Now, Vibram is taking another approach which is separate from the NT.
Separate from the NT is not separate from the PDGA. If the events are sanctioned (and all of them are), they're not all that separate. Rounds will still get rated, players will still earn points towards Worlds, etc.
It's basically new ways to group PDGA events so they are interconnected. The only thing that makes them "not PDGA" is that the PDGA powers-that-be aren't involved all that deeply in the organization. Which is the same thing that can be said of pretty much every A, B, and C-tier worldwide.