There are other forums?
Anyway, I'm not sure to be honest with you whether the problem with those two flights in particular is down to aircraft operating outside their scheduled hours or not. I did just pluck those two out of the fresh bit in the back of my mind as they've had some problems of the kind I described, in the last few weeks.
It's not just the parking for the blighter's though that's the problem. The A6 area (abeam the fire station-ish) gets mightily congested at peak times with in's and out's. All it takes normally is for apron control to shove something big on a stand adjacent to taxiways Q or P and our usual life saving cheats in the area are gone.
I'm aware that, with the withdrawal of the Met Office from the airport, the space taken up by their little shack is supposedly to be transformed into an apron area. It's a shame another taxiway couldn't have been shoved in too.