Bugger.
As for your reality check, here's my view, FWIW.
I think what you are seeing is real. Canon (and quite possibly other manufacturers) are now happy to let defective products carry their name to market. My best guess is that maybe 10% are faulty in some way, so your chances of getting two duds in a row are 1 in 100.
I suspect it comes down to economics: QA/QC targets are set so at the point where it is cheaper to fix the units that are returned than to increase quality of manufacture. That works until they destroy their brand reputation, but, of course, if all manufacturers do the same thing, disgruntled consumers have no real alternative.
Anyway - 3rd time's the charm, eh?