I count it as CC. It's just CC made with Maxis tools and hosted on the Marketplace. But it's not made by Maxis, and it's not treated with the same level of "prestige" (for a lack of a better word) as packs, or how kits used to be treated. It can also disappear if the creator leaves the platform, so it's tied more to the creator than it is to the game and Maxis.
If it was a couple of things (like the creator kits), then I'd be less sure. But with everything in mind, it feels exactly like CC, just on an official platform.
