As for them being fixed in the future, that is problematic with the advent of MFSXXXX, which has no flat airport imitations, eliminating the problem going forward, finally. Production time going forward is being mostly focused on the new simulator, which assumes that most will probably switch over once it becomes available to the consumer. In those (rare?) cases where simmers might stay with FSX/P3D, commissioned ATAPs can be addressed on an individual basis.
As the article states towards the end,
“So while most airports will have no jarring visual impact with their minimal plateaus, there are some airports in the world that would require considerable adjustments. Most simmers who have embraced high-resolution terrain mesh have long ago accepted the tradeoff of occasional jarring plateaus in order to experience the often spectacular results seen enroute between airports, and decide not to throw the baby out with the bathwater.”