Sadly, the point raised above about 'emergency' does not stand. The conditions of Distress and Urgency are defined, recognised, and reflected in the use of 'Mayday' or 'Pan' in RTF, but you will not find a definition of 'emergency' in any relevant documentation.
Rather, the phrase used is 'the purpose of saving life' as per my previous post. So, it doesn't matter how many lives you're saving, providing that it's at least one!
Of course, you might find one of the other passengers on the aicraft sueing you for reckless endangerment or something similar if in the course of your below-limits landing you run off the side of the runway without hurting anyone, but the passenger concerned is emotionally upset by the episode and seeks compensation and thus makes a legal case against you.
Therefore, if you are going to bust the limits in this situation, you need to be absolutely confident that things will go smoothly. I have no problem, personally, in believing that this assessment can be made, given the right conditions - and it might even be possible to show it statistically, some of the time.