I hate to play devil's advocate here, but why blame the HID's and slam them if you KNEW it was possible to blow out the SJB? Sounds like the Edge is just touchy to HID kits in general.
Cigarettes have a cancer warning on the side...if you smoke and get cancer, is it the cigarette's fault? Better yet, alcohol has a drunk warning on it....if you drink and drive and kill someone because you were too impaired to drive, was it the alcohol's fault?
I hate to say it, but you were warned and knew the danger.
Not trying to flame or start a fight or whatever, just pointing out my observations. Sorry to hear about the $$$ repair bill.