It seems to me that the philosophy behind these speakers is that the reverberant sound field in creates in the room adds to the listening experience in a way that makes up for the shortcomings.
But even if so, there is one particular design flaw that cannot be overlooked or denied, which to my way of thinking makes these speakers non-starters. The tweeter is located beside the woofer, and the crossover point, judging from the graphs, is around 1 kHz. The wavelength at this frequency is 13.5 inches. How wide is the speaker? What is the horizontal separation distance between the horizontal midpoint of the woofer and the horizontal midpoint of the tweeter? In order for there not to be nulls at the crossover frequency, somewhere in the forward-radiation space of the speaker, this wavelength needs to be at least twice greater than the width of the speaker. There are 3-way studio monitors where the woofer is located to one side of the midrange-tweeter stack. In these speakers, the crossover from the woofer to the midrange is typically 300 to 400 Hz, such that the wavelength is about one meter, which is probably more than 3x the horizontal distance separating the woofer from the midrange. So with that type of 3-way studio monitor that rests on its side, there isn't a problem. But with this speaker, this is a very big problem, especially if the crossover filters aren't very steep. In order to correct this problem, the crossover point would need to be moved much lower. But then the issue would be with whether the tweeter side is able to play as low as would then need to play. So to fix that, the tweeter side has to be made bigger, which means wider, which affects the directivity. There isn't any way to fix it. Anyone who desires this type of listening experience, where sound energy reflected from the wall behind the speaker contributes very greatly to what you hear, would likely find the Linkwitz approach much better, where conventional drivers are used to achieve the same class of radiation pattern.