While I agree there are some areas that aren't "perfect" about how this speaker measures, to me this naturally leads to "how perfect is perfect?" or "what does perfect sound like?".
Having had the opportunity to listen to these in two different rooms, I was quite impressed with them. I should be, at $7k/pair. Sure. But that doesn't take away from the fact that I was.
As hard as I tried, I couldn't find any real faults with this speaker. Very neutral speaker that is very pleasing at both low and high volume. Yea, if they would extend lower than the measured 50Hz (approximate) that would be cool. But that's nonsensical of a speaker this size. And, as we see in other HARMAN spins of the larger PerformaBe, that would result in other issues. So it's a game of trade offs.
This speaker is extremely linear on and off-axis, has great dispersion both horizontally and vertically and had no problem exceeding 100dB at 4 meters in my living room and home theater. Objectively and subjectively, this, IMHO, is a top-flight speaker.
Frankly, I was so impressed by this speaker's subjective performance, I can't help but wonder what would "better" sound like and how would that also measure? Are we to the point of picking nits that don't really matter or are small enough in scale that would ultimately be a 'wash' as there is surely some slight user preference as well? For me to be able to answer this question will take not only more time but more opportunities. Opportunities to measure and audition other speakers of high-regard. Opportunities that I have tried to attain by reaching out to different manufacturers to see if they would be willing to loan me test samples (Kef, Vandersteen, to name a couple), who haven't replied. On the bright side, D&D will be sending me a pair of the DD8C to review but the state of everything these days is causing delays.