I didn’t dare to say it. It is too true. Both blimp and soft kite volumes scale cubic, parachutes or powerkites being bulky.
When blimps become larger and larger, their mass increases such that even large rigid airships become lighter.
Why would not be the same for flexible kites, knowing that AWE use at large scale could involve dimensions like airship dimensions? Flexible kites are far to reach such dimensions.
And perhaps we will see a fairly consistent relationship between the power that a rigid or flexible AWES (in respectively similar materials) would develop and their necessary mass: if they only operate in light wind, their mass will be the same as if they are smaller and only operate in stronger wind, somewhat like lightweight wind turbines operating in light wind compared to smaller standard wind turbines operating in stronger wind.