The only reason that might keep them from releasing it, would be their own ego, as the single creative vision of the game. And that's certainly their prerogative. But other than that.. not much else really.
I, personally REALLY x 10bazillion want modding support, but, I'm going to have to voice disagreement with "ego" as being the sole and only reason CDPR won't release a toolkit for modding.
I'm not a developer, and I've never worked on a game development team, and because of that, I'm pretty sure I don't know ALL the very specific reasons that people outside of CDPR wouldn't really understand as to why they might not release a toolkit. I can, however, imagine things like concerns about their proprietary personal property, REDengine, and the access to that a dev kit might offer, that the government of Poland itself has invested MILLIONS of $ into the development of being an issue.
As such, a National Government's interest in the welfare of CDPR's proprietary game engine itself could very well be a gaint stop sign on anyone else other than internal CDPR, and the Polish Government having access to, and working with REDengine.
Here's an article about that, in case you're unaware:
CD Projekt Red Gets $7 Million from Polish Government ...
There could also be lots of other reasons, very valid reasons we don't get a modding toolkit.
There's always factors we don't see and might be entirely ignorant about that could play huge factors in decision making with any organization. We all like to armchair referee everything from politics, to video game company management, but, when it comes down to it, I don't have the clearance, nor likely the understanding of all the factors even if I had the clearance to see those factors, to know what all the very valid reasons for any X decision might maybe be.
With that, yes, there's a ton of great arguments to release a mod toolkit.
I want modding. Most of us want modding.
However, let's recognize that we might not know the unknowable, and that there very well are unknowable factors that might play a part in putting the NOPE to modding.


