Is being clear and understandable not an important professional capability? If not, then why does the interview require it?
> B: Uh, maybe a little? I've been taking accent reduction classes and learned to speak without one, but can't keep it up 24/7.
> A: Thanks for your honestly. Unfortunately we'll have to let you go. Please pack your desk.
I believe employers might ask about it. if you tell them you are bettering your communications skills. It can only be a plus? Because this guys is using his spare time to better himself, instead of watching firefly over and over again in hope they will continue the series.