Prof - We have an interesting YouTube series that you might enjoy and might not agree with - which is ok. Michael Borresen discusses measurement, measurement manipulation, his beliefs, and his approach to design - stay tuned!
https://www.youtube.com/@NextLevelHiFi
Regarding the graphs/measurements you cited: this is from the same award wining review in which the Borresen C1 was garnered by Hi-Fi News with an Outstanding Product award. To quote:
"Hi-Fi News Verdict
Børresen’s C1s are a fine choice if you’re in the hunt for excellent sound from compact speakers for use in smaller listening spaces. In practice they justify all that in-house technology by sounding just as good as they look – they are both solidly built and finished, and distinctive enough to stand out from an arena that’s not exactly sparsely populated. Yes, they’re different, but they have qualities that demand audition."
Also, here is the full review for those interested in the overall review and not necessarily the measurements or graphs:
https://www.hifinews.com/content/børresen-c1-standmount-loudspeaker

