I'm stickin' me neck out 'ere and am willing to be shot down in flames but I'm gonna say definitely not for similar reasons to why I don't count myself as a source/traditional singer. (And I also know you're stirring it/ playing devil's advocate as usual because United beat City on Saturday)
You came to the carols as someone steeped in the revival otherwise you probably wouldn't have shown any interest in them. You have become heavily involved but more as a historian and archivist, or as some would say an 'incomer' or 'interferer'.
As folklorists/researchers whatever, however we get involved in what's going on we are still coming at it from a different angle.
Well that's my twopennorth.