Can one nest those kirigami structures on top of each other? Imagine if you had a smaller-diameter version right on top of it. It would open up inside the outer one, increasing the surface area. The bottle example didn't seem convincing in and of itself in the videos, but the small egg and LEGO figure had what looked like somewhat functional.
My uneducated guess is that they would interfere with each other, and only whatever portion of the top ones that fits the profile of a single, larger chute would give you any extra lift. To the point that you are better just making a single one the size you need.
