Is “Yo DM, just make something up” a process? That seems to be the semantic distinction being argued.
The DM sets a DC, determines what ability and proficiency applies. It's a process. It's not "just make something up". It's a judgment call of difficulty from "automatic", "easy" all the way up to "nearly impossible".
It's a flexible process for just about any kind of situation where the outcome is uncertain. Because it's such a broad process it can't have hard numbers, that doesn't mean it is not a process of resolution, which is what has been claimed.
D&D and PbtA games like DW are simply comparing apples and oranges and the rule structure of each has little to do with each other.