They might have decided they wouldn't reveal it now because they knew Microsoft would make their announcement, and that by revealing it later, it would allow them to adjust their final specs to match or beat it.
One thing is for sure, 6TFLOPS of power in a home console is gonna be sweet! I know now that I will never own a [regular] XBox One. Gotta wait until the Scorpio releases before I buy a new XBox console.
I really don't think the NX even matches the rumored PS4K specs. Nintendo's recent history gives no indication that they'd go for powerful hardware that beats or matches its competitors. So I don't buy that "Sony realized the PS4K would be the weakest of the 3" one bit.







