A different analysis minimizing the “effect of flying mass” for flygen systems is given on Flygen - #13 by PierreB
"7.1. Effect of flying mass
In all AWESs, increasing the flying mass decreases the tension of the cables. Since Ground-Gen systems rely on cables tension to generate electricity, a higher mass of the aircraft and/or cables decreases the energy production [107] and should not be neglected when modelling [109]. On the contrary, increasing the flying mass in Fly-Gen systems does not affect the energy production even though it still reduces the tension of the cable. Indeed, as a first approximation, the basic equations of Fly-Gen power production do not change if the aircraft/cable mass is included and this is also supported by experimental data[108]. "
Moreover this topic is about power to space use ratio, not about power-to-weight, excepted if there are connections. Could you support “…that maximum power-to-weight AWES design is favored, including to maximize airspace capacity…”? Can be it due to a possible lower path radius? Or safety concerns?