Gonzo,
I don't think that throw was inferring that no of pax should be an issue in the grading.
The fact that complex cross runway operations are not measure in the calculations is ludicrous, just because "Not many UK Airports have Cross Runways"
Another factor that wasn't considered because "Not many UK airoprts do that" was Approach radar working departures before handing over to the centres because of complexity of airspace issues. I reckon that PF works around 10 - 15% of it's departures, PH roughly the same PD work about 98% of their departures against inbound and overflying traffic within the TMA.
Prospect are supposed to have visited each unit and looked at the various idiosyncracies (sp?) of each unit and worked out a score, just because "Not many UK airports do that" doesn't mean that it should not be counted and calculated to give a TRUE reflection of the complexity and therefore a true grading.
Another bizarre fact that came out was the fact that using the current grading structure an airport without an approach radar function is more complicated than one with?
All those tower only units out there that have been banded below their former colleagues who moved to TC need to ask some serious questions of Prospect!!!