There's no way that those died due to an airflow issue, especially with those two 80mm fans, like Kougar mentioned. I know the guys who did that video and they take things seriously, so I don't think they'd overlook something so simple. What's amazing to me, is that all six died within two minutes of being at 75% load... that's nuts!
Corsair does make some great PSUs though (which is why we have a 1KW of theirs in our main rig), so I guess they have all the reason in the world to point these facts out to people.
As for PSUs that have died, I've killed a few in the past, but that was mostly before I began to take things seriously and "got a clue" so to speak. The worst hardware-related incident I had with a new product was with BFG's 6800 GT PCI-E. This particular card was the third I got back from RMA (yes, these cards were crap), and on the first boot, it sparked up and killed itself and also my monitor. Was not a good day.
Intel Core i7-3960X, GIGABYTE G1.Assassin 2, Kingston 16GB DDR3-2133, NVIDIA GeForce GTX 770 2GB
Kingston HyperX 3K 240GB SSD (OS, Apps), WD VR 1TB (Games), Corsair 1000HX, Corsair H70 Cooler
Corsair 800D, Dell 2408WFP 24", ASUS Xonar Essence STX, Gentoo (KDE 4.11. 3.12 Kernel)
"Take care to get what you like, or you will be forced to like what you get!" - H.P. Baxxter
<Toad772> I don't always drink alcohol, but when I do, I take it too far.