From the airport stand point it is not so hard to understand that they want to offer the service. To get extra revenue for the existing security staff. I am pretty sure they built this track hoping to get a few airlines to sign up for there elites and J pax. CPH have done that pretty sucessful, even norwegian have signed up there.

But I think they didn't analyze the situation at GOT enough. There is not much longhaul and most of airlines offering J-class from GOT is cutting back on costs anyway. I get the sense that most traffic out of GOT will soon either be European business flights with low-cost/one-class services, charter flights or specialized routes like IST. I don't see TK or IR signing up for fast track of elites anytime soon.