I'm sure Corsair is a completely and totally unbiased source. They have absolutely no incentive to exaggerate their findings. None at all
Working with schools, non-profits, and other organizations that had a minimal IT budget, I've worked with my fair share of shitty power supplies. They had a minimal amount of connectors, the fans sucked (or sucked very little), and they were usually pretty noisy under load, but they only time I've ever seen a power supply fail like that was when it was severely overvolted.