A true professional Pilot will evaluate this situation
And realise that they are pointing the machine into a situation where they don't have an escape route.
The wake vortex question is for civilians operating into military airfields which don't seperate you for wake votex. You can ask for anything and they will clear you for it. Also in alot of the world outside europe they don't have a clue about wake vortex or its the pilots responsability.
Another situation that you have to watch is helicopters operating a seperate circuit to a spot or ruff ground next to the runway.
The numbers are neither here nor there but its more the concept you need to have vortex seperation.