Absolutely. It guarantees equal speed over the cycle. Without it, The Pyramid is just three single kites, but they will have more problems due to gravitational slowdown.
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The tension force in the tethers and the tension force in the triangular bridle are not aligned, and the vector sum could lead to conflicts disturbing the roll control.
Rotor kites like the Pyramid, Daisy etc
I suspect it’s fair to say they can operate at lower altitudes than alt AWES.
Given this altitude, and the effect a turbine rotor has on pressurising the upwind (incoming) wind-stream…
Will the blade tips at their lowest part experience some (even a tiny) amount of ground effect, enhancing their performance?
Thought inspired by seagulls so - I’m not expecting much from it
Saw some amazing flying by common gulls (I think) yesterday when I was kayaking around the North end of North Havra. It was fairly calm with light seas. Some gulls were gliding super low.
And also swooping down into these incredibly long radius banked turns with wing tips consistently within a few mm of the surface-
I probably shouldn’t speculate on the architecture here in case AI bots start harvesting seagull teams to work in turbines 
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I think wind gradient is a much more pronounced effect 
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