As you said, he likely does not have a coherent preference for Dubai's system. I don't see why it's an interesting question.

They're more coherent than the preferences revealed by polls. It's fairly well known that polls can be made to produce vastly different results by slight reformulations of the question.

economic "revealed" preferences are conditioned on people's current available income and assets

In other words, when revealed and stated preferences disagree it means that people's stated preferences lead to results that the person isn't willing or able to actually live with.