It's a neat idea for the interview, but it could have caused problems, at least in the U.S., regarding labor law:

Suppose the interviewee had answered, "I would work towards a proper implementation of Sharia law." or "I would start by building Christian churches and state-sponsored public preaching." or "I would start by replacing all mosques with science-and-technology museums."

At that point any candidate who wasn't hired could have a good starting point for a lawsuit based on hiring discrimination by protected class.