I'm being a bit slow here, but I can't see anywhere that it explicitly states that flying in and out of any of the 37,000 airports/airfields/airstrips will be just the same (I mean in terms of there being solid and level aprons, taxiways, runways, navaids, ATC, proximity to nearby scenery, trees and other hazards) as the 'hand-crafted' airports.
I realise and accept that they cannot all be exact and accurate replicas, until the third-party people get on the job. Are there some of the promotional videos that show normal aircraft activity in and out of any of those 37,000 non-hand-crafted airports? Seeing would then be believing.