The Grand Teton specs on teh website indicate frequency response down to 42hz but no indication of the roll off so it could well be way down at that point. Another generalized spec that may mean little that might play into a higher sensitivity rating perhaps.
Nothing new to see there people...move on. Happens all the time! A least some reviewers like Stereophile do measurements that provide more insight if anyone cares.
Also given the unique waveguides or call them what you will, I could see where these may well be more directional than most speakers meaning more sound to the front than sides than usual, which could also help sensitivity measures, at least on axis.
So its hard for me to say the specs do not add up. Its also hard for me to say they mean much. Maybe if people hear these and like them someone will take up putting them to more rigorous and quantitative testing. Of course that still does not indicate necessarily how good something sounds or not, just how well they perform from a technical perspective, which might be a useful starting point of information but seldom tells the whole story accurately.
I'm guessing the most unique thing about these might be that they have a unique sound radiation pattern which might be a boon or benefit depending. At least its a different twist. I would like to hear them just for that.