The original work linked from the "Singletrack" article talks about 2 failure mechanisms. One is pulling the QR out (forces greater than the ISO test for QR integrity), the other is loosening of the QR induced by variations in braking force. The calcs are for the former mechanism. The second, however, seems to be fairly common.
We are talking front brakes only, here.
In fact, larger rotors "ought" to be better - max force is the same in all cases (wheel lock-up) but there is a lower moment about the front axle, thus less chance of pulling it out.
Quite a lot of discussion on the Singletrack forum on this issue. No-one is quite sure how bad this is or whether certain QRs / forks are better/worse. Needs a bit more investigation though, as James Annan (original author) points out.
From my experience, though, I've never had this happen but that doesn't make the analysis any less valid.