With the release of a new chapter and a return of this series to my immediate notice, I feel obligated to chime in late in this discussion thread with a single contribution to the ongoing dialog.
"Viz did it too!" is not a good argument. Big companies that pay their employees make all sorts of stupid, awful mistakes all the time. The fact that money is being exchanged for labor has zero meaningful correlation to the quality of that labor. For the purposes of this post I have no opinion over whether the accent was the right choice or not. I merely needed to point out that this particular argument is quite terrible, and should not be made by anyone, ever.
Thank you.