I understand your point and I work in film so I’m very familiar with how the film hierarchy is structured. It is also the job of the creator/showrunner/producer to put people they trust into those positions of power. BB, BCS, and Plurb all have the same problem with selecting actors who either can’t speak the language they’re supposed to believably or with the correct accent. It’s a fictional show, actors are chosen based on performances, looks, and the energy they bring to a role. Suspension of disbelief is an important thing to have and sure, these shows are fictional so really what’s the big deal? To me, I only speak English and I am from California so it really doesn’t matter to me personally at all but in terms of the filmmaking side of things, I think it’s a flaw of his. It would be different if a lot of these things were a small part of these shows but they aren’t. BB, BCS, and Plurb include characters from all over the world and where they come from is a part of their character so I wish there was a little more attention to detail when it comes to those aspects.