Why in the world would Larian open the game up 100% to modders, while it is still in early access - and in fact the early part of early access .

The point of early access is to give them the opportunity to test features and mechanics as they work toward a final product - not to provide "meaningful updates" upon demand, nor to have modders test out THEIR features and mechanics toward said modder's "final product".

It's like Ford showing off a prototype car at a convention, and folks screaming for them to hand out the full design specs so after-market upgrades can be designed for said prototype.