Yes, arches can be added to the “exception” of “rotating sets” I mentioned. So “rotating sets” and arches are no more exceptions. Perhaps we can try to see what kite networks require each kite to be (more or less) autonomous like these kite trains or kite groups I just mentioned, and others, and what kite networks require the contrary like arches, rotating sets, and others, and why. Multi-anchor for arches and some possible other kite networks may be a reason for this. We are far from knowing everything and having experienced everything about kite networks.