The only reason I can see to present such a scenario to a candidate, is to see if they are prepared to exercise their command authority to break a "rule" or "SOP" in a situation which clearly calls for it.
i.e. Pilots are constantly trained to go around from minima when not visual, or with a failure. You want a Captain to quickly recognise when this is NOT appropriate, and act accordingly.
This scenario seems designed allow the candidate to demonstrate that - not a particularly good scenario though, as it would be better if they have at least a minute or two to make their decision.