Scaling by size and Scaling in numbers rather than size, both ask a question: what is being scaling, an unity, or the kite-farm?
Assuming it is an unity. AWES could scale in a similar way as planes or current wind turbines, all elements scaling in 3D, or in a different way by the number (e.g. the number of the blades or the stacks of blades), the whole forming a well defined unity.
But in all way we don’t know what to do with a 1 km tether(s).
So it becomes a question for a kite-farm, comprising the question whether a kite-farm can be seen as an unity. Thus the question becomes similar.
As an element of response, let us rethink an AWES as a whole. It was possible to make planes or wind turbines then grow, but in the AWES field the tether length imposes to think the whole kite-farm from the beginning, at least for utility-scale.