If they can take away resources from running the OS, surely that means something.
In term of main console stability they should have made a big step anyway I qoute:
"Component-wise, Scorpio will feature a 2.5-inch 1 TB hard drive that offers a “50 per cent increase in bandwidth,” reports Digital Foundry."
by having every base harddrive in every scorpio performing better that should also increase system performance and stability. Also since the memory bus is much higher then any console has ever seen and the memory speed matches that of a base 1080gtx which is insane the fact they require less ram because of the speed of both the HDD and memory isn't a big suprise.