8Cr13 is closer to Aus-8 than 440c from what I recall. You've got to watch Chinese D2, there are budget brands using legit D2 and other things fraudulently labeled D2. Even different knives with the same brand name can test as real and fake. Heat treat is another concern. Luvthemknives on YouTube tests a lot of them. There are some great Chinese made knives out there right now if you do some research.
That said, if Spyderco had a maker that could do D2 properly, it could be a selling feature for a lot of people. I'm not sure it is worth the premium that some companies charge, for example, a Honey Badger medium is $37 for 8Cr13, $57 for D2. Not worth it in my opinion. Exporting cpmD2 would add a lot to the cost. Standard D2, done well, is a good steel if you don't mind a bit lower corrosion resistance.
So many knives, so few pockets...
Just got:Rex 45 Para 3 LTWT
, Harrier 2 LTWT
The "Spirit" of the design does not come through unless used. -Sal