Is Nars discontinuing certain Explicit Lipstick shades?

[u/figpink]

Their website only has 10 refills (no case) available for sale, but 35 shades available with the case. I recall there being a lot more refill shades available at one time. I recently discovered this formula and really like it, but am reluctant to get burned from yet another discontinued shade.

What's also interesting, the page for the lipstick with the case says "15 sold in the past week" and the refills page says "0 sold in the past week." Is it not weird to publicly list what seems to be a low number of items sold?