“don’t use our tools to sell mods”.
I think there are still misconception: CDProject was smart, albeit dishonest, into presenting the whole thing as "Cyberpunk's Mod"; so, you (as general and misguided reader) inclined to think the modder took something from CDProject and generate something from thin air... added games are just icying on the cake.
The framework was already setup and working for several games even before Cyberpunk addition.
What is CDProject doing here is just some PR magic to blameshift their actual responsibility: they didn't ask the modder to remove support for Cyberpunk, they went on and sink down is whole business by addressing directly another company (Patron) which are more "sensitive" to business and discuss less.