I don't really see that. I think whiteboard coding is one of many ways a team could function and that how a candidate performs on it is not generalizable. For instance, I have never written code, pseudo or otherwise, on a whiteboard outside of an interview in over eight years of writing code full-time. Hell, I used a whiteboard more in my four years as an EE and two years as a SysE than I have as a SysE/SwE.