By "soap opera," he may simply be referring to all the collective drama about Mike's departure, the drummer search, and the holdup on disclosing who was picked. I don't think he is necessarily referring to the documentary.
(and I wouldn't be surprised if he were also just throwing stuff out there to throw us off the trail; as I've said before, I think I know who it is. But as far as the evidence that is out there, there is only one drummer I can say with absolute certainty is definitely "out")