You also gave Larian a fiscal reason. The game was in development for 6 years and was funded by Larian and the early access sales. They have every incentive to release a game 'good enough' upon running out of money.
I can find no indicators that suggest Larian was running out of money. If you look at the yearly revenue against the budget for the development of the game, they had plenty of cash on hand through 2023 - even before the sale of Bg3 they had 12 Million in revenue plus easy access to streams of credit if they needed it, plus the extra money from EA sales, plus a warchest from DOS2 that they came into development with (around $400 million or so).
Oh and another chunk from the Tencent deal, but I don't know how much that was. Although they didn't allow that stake to be sold for cash as much as access to China.
