I was hoping they'd take the opportunity to go Asian with the casting but it's not a deal breaker for me. (Yes. I know he's white in the comics)
The main question is, can they make him move like a disciplined martial arts master?
DD is a brawler. That's a little easier to portray.I mean, they took Charlie Cox and made him into a martial arts badass on Daredevil. I don't see why they couldn't do the same with Finn.