It's not useful because it has nothing to do with what you're hiring them for. Frankly, if I were asked to draw a picture, I'd probably walk out. If that means you don't want to work with me, then I probably wasn't going to enjoy working with you either.

I've been hiring game programmers for a long time now. I think there are plenty of other ways to evaluate the non-tech personality/team-player side of candidates. Start with talking to them.

I ask very blunt questions in this area. Will provide examples if folks are interested.