Other game studios do it. Look at Bethesda games for example. Or Witcher 3.
Nowhere near close in terms of amounts of dialogue involved AND part of a genre with a far larger audience appeal (unless BG3 will become the turning point).
It's not a coincidence that you have so many developers suddenly whining a bit that BG3 is "an anomaly rather than a new standard" and you didn't hear the same complaint being made for the titles you mentioned.
I'm not sure if I would buy BG3 if it doesn't have a German Dub.
Oh well, that's easy to solve then.
Don't buy it, because it doesn't.
