Yes, the beyond Skyrim ppl want to replace them, but still:
This is one area where AI will lead to many cool things. Yes, AI voices don't sound as cool as real ones but modders usually work for free and can't afford good voice acting, so they'll either do it themselves with shoddy quality and questionable acting that sometimes even makes the product worse, or avoid it at all costs (ever questioned why so many mods used letters and notes as story devices compared to main games? That's why).
AI voices can be a middle ground for exactly that purpose.