The ratio of swept/projected area between a hot fast sweeping kite and larger lumbering kite is closer to 1-to-1 than the 10x projected area comparison of equivalent power. The Sky is larger than land surface and ocean volume, so a 10x larger kite is still a speck in the sky. Its not like a road vehicle, where a 10x vehicle would take up 10 lanes and be unworkable.
Another scaling note from WP Square-Cube article lays out a scaling law for control and lift surface areas-
" Airbus A380: the lift and control surfaces (wings, rudders and elevators) are relatively big compared to the fuselage of the airplane. For example, taking a Boeing 737 and merely magnifying its dimensions to the size of an A380 would result in wings that are too small for the aircraft weight, because of the square–cube rule."
Take “fuselage” to mean “payload” or “power load” for our purposes. An interesting fact is the only reason that jumbo jets grew so large is that the unit-passenger scale remains constant, allowing more scaling than otherwise. This scaling advantage applies to kite aerotecture, but not pure AWE.