Earlier quoted context omitted.
Legally they don’t need to have literally used her voice to have broken the law, never mind violating many people’s basic sense of what’s right and wrong.
They don't? Because if it's true that they used a sound-alike voice actress for the actual model, I don't see how any reasonable complaint about that could stand. You can't ban people from voice-acting who have similar voices to other celebrities. There needs to be something more to it.
Actually, you probably can.[0]
[0] https://casetext.com/case/waits-v-frito-lay-inc
Edit: Added the context for the reply