Just talked to pilot who frequently flies out of Bluegrass Airport (non-commercial).
He says it is a bit confusing and he could see how mistake made by pilot, especially during early morning hours. However, not sure why ATC did not provide warning.
Looks to be pilot error at this point.
Prayers for all who lost loved ones.
Flight crews are human and they do make mistakes.
Sometimes, like all of us, flight crews rush to get through the day.
I wonder where this flight crew was based and what their schedule for the day was going to be. That may support or deny my theory of a rush-job.