If they pull this off like Bethesda did all those years ago with Morrowind, BG3 could become an eternal classic. Thank goodness they stood up to the plate given Bethesda’s abysmal fall from grace.
Making a game mod friendly is a pretty challenging task IMO. I understand why its not a priority for day 1 because first it adds no value on day 1 generally, since it takes time for people to play and then design and implement mods. Second, if your game is barely getting over the finish line, as many AAA games lately seem to be, then you should probably have allocated those resources to making sure basic functioning is good before you add mods.