Please try to see a somewhat broader perspective:
Yes, it is annoying if you start at one of the two dozen airports which are really well developed and die instantly.
But - there's still ~19.500 airports in the world where this won't happen - because they're completely empty.
Which tells to me that our
real problem is most emphatically not having airports overpopulated with models, it's lack of models throughout the world. So discouraging submitters seems a bad strategy to address the real problem to me.
I for one enjoy seeing aircraft parked here and there when I happen to hit a developed airport (which is rare enough...) and I am grateful for the work that went into making that and hope people will continue to make the scenery more interesting. And should we ever come to the point that overcrowded airports are a real issue, this definitely looks like an automated solution during startup might be feasible.
So if one parking spot doesn't work, smile that you've found one of the few well-developed airports, try a different one or a different airport and fly in