I mean none English names didn't stop chewitel Ejiofor, Idris Elba or Gugu Mbata Raw
Seems like an excuse to just change your name to something none ethnic
Starting out though I doubt any of those actors were being color-blind casted in roles. They were likely only being seen/cast for roles of black characters just based on their names alone. Plus no matter what those three actors changed their names to they still are black; Bennett can pass for a white girl.
And looking at her career she has benefited from the name change because while she looks almost 100% white i she was going after the average white girl roles that she has tended to get with the last name of Wang I really don't think she'd have been cast in most of the things she has been cast in because casting directors would see the Chinese name and immediately think she would be wrong for certain parts.
I mean before she got Agents of Shield she played some record exec on fukking Nashville which might be the whitest show on TV.