Baal's wish came true.
Although... it was perhaps realized in a slightly twisted way.
He indeed got the luxurious Demon Palace he dreamed of and indeed savored the blood of elves as he wished.
However, it just required him to continuously engage in some physical activities, along with repeated "unconsciousness-awakening" cycles that he couldn't refuse.
Not to mention how, after battle after battle, this proud Demon Lord went from seething with anger to restless impatience, and from restless impatience to questioning his demonic existence, practically reenacting a certain Demon God's inner journey... With the induction of thirteen new hardworking "employees" into the Demon Maze, this eagerly anticipated new version of the instance did indeed gradually get on track.
Every Demon Lord had a palace unique to themselves, custom-made by Eve personally according to their image—
