These are profiles embedded in the raw (NEF) files, not external files, so they will not show on the list. You need a NEF file taken with those lenses to see the profile.
In the case of the Z24-70 f/4 S, at some point Phase one seemed to have thought as making its own profiles instead of using the embedded ones, and that's why you see it on the list.
Why making your own profiles if there is already one embedded? Well, at least DXO think that they can produce a much better profile than the one embedded.
In any case, I think that those release notes are from version 12.1 (released less than a day ago), not 12.0.4 (released a few days ago)
Note: This really means that now C1 can read the profile from the NEF. They were previously able to do it from DNGs (converted from NEFs).