Its iffy isn't it? Like we have to remember video game mods are a whole can of worms and they are plainly in a gray area for many regions. Say for instance you have a mod where you have a party member who was modded in who was something like John Wick, Indiana Jones, Princess Leia, Luke Skywalker, Macho man Randy Savage, etc. Some of these mods would likely rip audio from other source material or they can be impersonation but you are taking someone's "likeness" in a similar fashion. Is it just a step too far because we are copying a voice? I'm 100% for modding but we have to be aware it is on pretty shakey ground. Its also hard since some voice actors do have a ton of range and would it really count as "stealing" someone's likeness if you are copying a voice of a character they have played but you aren't copying their regular speaking voice
I understand why people fear AI but I just think when its being used by hobbyists its a bit different compared to a company doing it especially when the hobbyist isn't doing it for commercial gain. Like the recent outrage about a fan animation of scooby doo using AI voices where an actual voice actor sent a hate mob and trying to blacklist the person for daring to have a shoestring budget and make a silly non serious fan episode of scooby doo.
Edit: It seems crazy to see someone dismiss a person's hard work just because 1 element isn't up to snuff. I don't agree with people hating the concept of "AI art" but this person did a full 10 minute 3d rendered retro style felt/puppet animation but the voice acting is the massive hang up and seeing their work dismisses because of it is infuriating.