............That's not really a valid reason.
These are not standardized ratings and evaluations. Therefore, the manufacturer's reputation is important. And Corsair has a solid good reputation for their PSUs, RAM.
As with all good manufacturers, occasionally a bad product, or a bad batch will slip through. In a way, this is good, because the cost of 100% good products, 100% of the time, is infinite. Zero defects -----> infinite cost.
As long as a good company has few defects (acceptable %) and a good RMA process, I have no issues.