That was a good summation, Vit.
I too have a problem with phony accents. And not just in the Vikings series.
Every time I am watching something where the accent just isn't quite right I think two words, Sean Connery
That actor's accent doesn't change no matter what character he is playing
Probably why the storyline always tries to work in a Welsh or Scottish background. That was tough to do in Crimson Tide though
But yeah, they are too Bristish sounding, but no worse that Sean Connery playing a Russian submarine captain.
It is bloody, but it's not gratuitous blood anyway. That's probably why it's on so late. At least by my EST standards. The detail in the graphics though isn't just the show of blood, it's what I would call impact blood, or moving blood. I can imagine that would put a lot of people off due to its realism.
I'll say it's certainly a step out of their box for The History Channel, but you can only show so many repeats of MonsterQuest and Pawn Stars