At this point I think this is part of the plan.

After enough Qanon nothingburgers people are going to start asking serious questions. Maybe a few people (4-6%) are dumb enough not to, but the majority will.

But eventually people are gonna start asking some real questions, if only because the msm won't fucking shut up about it.

The more and more they fearmonger and nothing happens, the less credible they are.