He’s referring to the accent people are giving to the Sword/Shield protagonist.I stopped watching the Pokémon dubs long ago so, i don't know how terrible the voices etc are now.
I'm hoping that the English VAs will be doing something for the movie though, even if it's just saying the name over and over.Unless voice acting is a thing, there won't be accents in the games. As for the anime though, we will see how they do it in Japan, maybe they will get actors who can speak in the accents. Can't speak for the dubs since those are handled by Pokémon Company International. Voice acting in the games would be interesting to see though