I do think that most devs give the mod tools to extend the life of the game, which in turn, only helps them. I honestly believe that's all Larian is doing for us here.

Bethesda is the only one I know of that I honestly believe that the devs tools are given so the game can be fixed by players. And I am talking only of mods that fix the original game and nothing more.

Here is the unofficial Skyrim patch change log:

http://www.iguanadons.net/Unofficial%20Skyrim%20Patch%20Version%20History.html

This patch does nothing but fixes the original game, or adds/removes things that were supposed to be(or not) in the game. I can also tell you that the unofficial patches for Bethesda's other games TES, FO, etc. are not much better.