Sometimes this type of thing is reasonable... within close proximity of the cliffs.
Example: TO on top of the Mogollon Rim in central AZ, rise to 10 feet above TO.... then fly out 50 feet and my drone is about 2000’ above ground below it as the Rim is a giant 2000’
Escarpment stretching 250-300 miles across central AZ.
I think it's completely reasonable - in fact necessary - and should be explicitly included.