Always fun to see someone scold others to 'chill' while tossing around terms like 'malpractice' and continuing with so much conjecture, no real facts.
Sure Apple engineers knew the impact of one NAND versus two. Anywhere that knows how a NAND controller works knows this without testing.
But Apple's focus has always been on the overall feel of an experience, not specifications. And here, Apple provided a lower price option for those that want it . May not be the option you want, but its there for those that want it. They also offer higher price options for those that want it. Big surprise, higher price options, better performance.
No one is screwed here. Everyone got what they paid for.
Chill.