In a nutshell, that's what i'm thinking too. Now we need someone with the administrative rights to recreate the Trial of Davros page which currently has a lock preventing common contributors from doing so, this delete lock was put because the administrator thought that all performances were unlicensed.
What i also wonder is if the youtube videos i mentioned before, which were part of the BBC approved performance, would be as invalid as the performance itself or could be considered as some official webcasts. I don't know if the BBC made any statement on the "canonicity" (for the lack a better term) of this stage play, and since i myself have not seen this performance i don't know if it fits with the DWU. If it clearly doesn't fit then it obviously would be as invalid as Big Finish's Unbound stories.
I'm getting a bit off topic now but if a one time performance is considered uncertain, are the wiped images of missing TV episodes also considered uncertain?
For example, i've read from those who remember vividly seeing them that at the end of the Massacre when Steven leaves the First Doctor's TARDIS that there was a clear shot of him going through the inside door. It showed that it lead to the inside of a police box with the exterior door looking like an emergency exit door from the inside.
Could we add it as a valid source of this wiki or is it also too uncertain? (maybe i should make another topic for this matter)