Maybe nothing, maybe EVGA, with their reputation for quality and sound engineering, would have looked at the garbage adapter cable Nvidia shipped to board partners and said "Hell no, we're not shipping that to customers" and sounded the alarm on it before thousands of these got into people's homes and offices where they may yet kill someone.
I don't personally like EVGA, had a bad experience trying (and failing) to get warranty replacement for a defective PSU, but I can certainly follow GP's thinking about how EVGA's involvement with this launch might have made a difference.