KnC should have put two PCIe power connectors on each module, but I assume they miscalculated the power requirements and that's why they only included one.
Nope, incompetence - and they didn't care.
It was clear that each cube would draw >>200W, so why spec a 75W plug?!? Greed and negligence!
That mistake made, they should have included PCIe Y cables with every Neptune. It's a cheap solution to the problem. Finally they see that now, and are sending out Y cables to every customer.
I still believe it's not that KnC "see's that now", but that they were under pressure. I have notified one consumer agency regarding the fire risk and also threatened to return the Titan straight away. I'm pretty sure "burning cables" would be interesting to many health and safety authorities.
It's damage control of KnC, nothing else.