As with everything it has to be over done and the pendulum swing back to find what works best. Not that we need spend much time on no struts, but I think this post was a bit of a joke anyway. There looks to be a centre strut its just ffffffflat as the threat title alliterates. One strut, no thanks, 7 struts equally no thanks.
Same goes for how flat the kite is, the bridling, the sweep, the profile, AR and all that stuff. Even line length have been dialed into pretty tight ranges for specific applications.
3-4 struts, 4 line, med AR, simple short bridle, C shape, decent chord at the tips..... simple, stable versatile, user friendly, fast and powerful.
Its all kinda coming together where its not an extreme design that works best right now but a pretty moderate one that has no extreme parameters.
These are good times. There are a few kites out there now that fit the bill for 90% of us. There will always be a niche for the specialists, but those are the exceptions.
Who knows, there may be another big revolution in kite design, but regardless, there are a few outstanding kites out now that will always work and whatever comes next has to have a lot more than gimmick to change the market.