You do realise that "ground crews" is referring to the deck move team?
Like the push back crew?
It is deck landing and airborne refuelling by itself.
Do you have any idea how much more difficult that is than cruising an airway.
If you are not going to bother debating sensibly after reviewing the evidence then why post?
You will notice that the last link was to a BAe baby airliner trialling systems for airliners...?