It's to do with the new permit rules for non keshies.
You are only permitted to pick up.a pre-booked passenger in zone 18,and that booking must have originated outside of DAP.
So I'd expect the virtual rank to disappear completely inside the airport soon.
Uber and Bolt have done nothing about the new rules,so Freenow must be thinking legal action because of their driver/passengers being at a disadvantage.