The whole big cut content is essentially worthless. Few things were confirmed but most of it is speculation without any proof. And yeah, BG3 is popular, so why Larian should put even more money into the game? Why add things into location that barely works, why invest more resources and time into already huge financial success instead of cashing out and focusing on next project?
BG3 is not their last game on earth. For a company that built the trust throughout so many years and is known to listen to its community that'd be quite a shit move to abandon THE game after such a massive success. I agree with Rae, DE will boost sales and make noise, drawing new attention to the game