I understand your position and concerns, but as I've written a number of times MSFS is a new sim, and just like all the past "new" releases of base sim products it's going to take time for it to mature. MSFS uses more integrated and external technology than any past or present sim, so once the sim has matured I'm confident that the issues you cited will be resolved - and if not then (again, just like past sims) third party developers will step in and improve them.
This is very complex stuff, and those who grow with MSFS will have a keen understanding of the sim.
As far as I understand, this is an old control tower. It remains to make textures for one building, which will be directly in this set, fences around the buildings and you can prepare export to a flight simulator.
Of the buildings that will still be at the airport: hangar near parking lots 41-48: small outbuildings: transport department; ReMax Courier Service Ltd; BTS Cargo & Hangar Services; air traffic control building; Hotel Bratislava; DHL Express Slovakia building; the customs building and the territory where the fuel tanks are located.
This is a list of buildings that will be with the airport.