@ ifly:
There are considerations beyond the freedom of GA to take advantage of the quiet skies.
These may well include public order issues, such as the risk of frustrated travellers rioting if they see someone else flying. No, they don't know the difference between GA and commercial aviation and acromyms such as "VFR" mean nothing to them. Think of it as like wartime rationing: the decision has to be seen to be fair, even to those with warped perception.