Can’t say this mirrors my experience either. Taildraggers were working fine at launch and are better now with the recent ground handling update. ATC issues taxi instructions based on the scenery files and I’ve not found missing airports save for some tiny private grass strips. I haven’t found a missing towered airport. Real world charts work just fine, a Navigraph subscription is one of the top paid addons to use up to date IRL charts.
If it’s not a complete sim, what is? XPlane has slightly better flight dynamics, ground handling, and replays, but that’s about it. MSFS is at least on par everywhere else.