No idea. Maybe they can't be bothered to pay someone the extra time to do it?

Back on the topic of the video though, nice to hear that sword bards will focus on the dancing aspect, that's cool. And it sounds like they've put effort into the less obviously translatable wizard schools. I'm cautiously optimistic about playing a vengeance paladin. I'm still holding off until at least my second playthrough so at the very least any bugs will be fixed and I'll only have to worry about dealing with the actual oath. I wish I'd heard more about warlock patrons but I'm sure I'll enjoy warlocks no matter what.