Nick, what if you're landing on an elevated pad, about 70' in diameter (in a 76)? I can understand not setting the brakes if there is some room to roll, but in event of an engine failure just before landing on a small deck there would be absolutely no margin of error concerning brake application. I think having them on is one less thing to worry about.
Most checklists provide about 4 checks before landing to ensure that the brakes or either on or off.(post t/o, cruise, descent and landing checks.)
In a 2 crew aircraft, making a run on landing to run- or taxiway, with the brakes set is more a sign of bad CRM then PDM.