Fair enough -- to me it seemed pretty clear that it was the Teselecta thing all along it is just that it took a while for the doctor to catch on to this. I don't find the "the universe was faked out" thing convincing. I mean the really nice part about the Teselecta explanation was that the doctor himself was actually present inside the thing that looked like the doctor and that was clearly dead. For me it was a "woah neat" moment that they'd contrived a get out which worked with "yes, this really is the doctor, yes, we checked it's not a clone or scan, yes he's dead" -- 100% consistent with what was presented.

I guess you could believe it was originally the doctor present and only in the second iteration was it the Teselecta but that takes an elegant minimal solution to the problem posed and makes it ugly questionable and messy (to my mind at least).