No, it's not an unfair advantage but it's not a level playing field either. The ME3 are little more than pirates who rip off whatever they can from others. Instead of robbing ships they now do this using airliners flown by staff with few rights, pay little tax and virtually nothing in social costs. Worst, the westerners who work there expect to return home to a society they have not contributed to and possibly even helped destroy. It's not as is if they even have a local market worth tapping into by way of trade. So, if the ME3 want access, let's have a level playing field and a social tax, per flight, on the ME3 may be the way forward. If they don't want to contribute, that's no problem. They can just stick to flying in their own region.