Funny thing is, most animé Engrish is poor because voice actors don't actually bother to learn proper English. Most Japanese don't give a fuck. There's a very strong sense of national pride and superiority present within it's day to day culture (Japan can actually be pretty racist, when it comes to this.) Because of it's collectivist social nature, it's also traditionalist and has strong out-group sentiments. The more travelled Japanese often take courses abroad and as a result master English and pronunciation on a high level, because it is within their interest to learn that. Within borders, however, that is a lot less common. There are classes that teach, young children especially (if you ever want to stay in Japan for an extended time and English is your native language, this isn't a bad option to look into,) but it's far from the norm. Saying most Japanese don't speak proper English isn't racist, it's fact.
Now if we were to pass a judgement based on that, we could consider the dialogue racist, but as is it seems pretty clean to me.
As for freedom of expression versus offending someone... I ain't going to touch that with a ten foot pole, because the amount of interpretations of "Don't be a dick." has too many connotations for this not to get political.
Also as far as animé dubs go, I find dubs make me disconnect what is being presented on screen more often than not. As such I prefer subs most of the time, even if the VA quality is less overall. Then again, pretty much everything in my country outside of kid's shows is subbed no matter where it comes from. So I'm biased.
RP-wise, I'm discussing a few things with Falcon. As such my character will be introduced on a latter date.