It is, for the most part, they just need to update most of their advertising.
Everything except Analog Lab and You can buy that NKS from freelancesoundlabs.com
Arturia support tells me that OBXa NKS will be in the next update too.
The non-NI part of my KK, all NKS:
(note i didn’t install entire V Collection, but the entire rest of it is NKS. That includes Melotron, Vox Continental, Clavinet, B3, CMI, Farfisa, Stage-73, Wurli, Piano - all definitely NKS)
It’s what makes me love having the M32. All of my virtual synths are right there. I can surf bass sounds on the Repro-1, Mini V3, Massive X, and Oberhausen all at the same time based on their tags, instantly, and without having to load each plug-in up.
It’s a fantastic system, especially for previewing Kontakt sounds.