It also leaves a door open for future innovation as well.
An "update to quest dialog and option flow for some players" patch notes can hide entirely new quest iterations from people.
Everything done and repeatable can be adjusted, expanded, or added and the lore is already there to back it.
IMHO they're gonna have a tricky time trying to balance things since they clearly also want "the classic BGS" experience to remain valid, but it doesn't have to be for lack of innovation.
It's making it, from the tons of hydrogen it has in the fusion process. The energy and the reason stars even do this is because all of that mass that close together spontaneously does that; starts fusing.
We can't have any, because a star will use up all the hydrogen to make helium, then start using all of the helium to make carbon and oxygen. Then start to make...
This is overly simplified and it varies from star to star (the more massive the star, the longer it churns through "making" elements into more "complex" elements) until its core is all iron, at which point fusion becomes a net negative.
From there other things can happen like novae. All throughout this life process though, that "elemental conversion" is happening faster on the outside as opposed to the core, and stellar winds do blow off heavier elements that enrich the interstellar medium.
We need a shovel that can plunge into the sun's core if we want its helium, TL;DR.