I've been lucky with my (broken) psus, none of them broke anything else on my systems.
First one was a 380W unit, that came with Antec Sonata Piano Black- case. It just wouldn't start.
The second one was Fractal Design Newton, 500W-ish, can't remember exact model or wattage. Power quality went down, random boots when loaded. Bad caps, i think.
Since the first broken one (witch i thought was a higher quality model) i've been trying to choose only quality models. And failed...
Atm, i have BeQuiet 500W sfx-l and i chose Corsair RM750X for my sons gaming rig. So far so good...
It's really bad to see a psu failing like this. I hope it was a "monday unit" and not a general quality of that model or line. I find it odd that they didn't want it back for further examation.