Then again, I didn't blink either when his former officer threw out that weird southern drawl instead of the standard RP for Imperial officers. The same for the big baddie Moff Gideon for sounding as American as he does in all the other big roles I've seen the actor in, much less as a high-ranking Imperial officer.
I probably unconsciously got inoculated to the accent disparities during the prequels. Little ("yippee!")and big Anakin were atrocious.
So, Star Wars characters living in a galaxy with how many ever planets, peoples, and languages, should all sound like Oxford grads?
And people say I need more diversity and inclusion training...