The interest is there. Same crowd is probably also looking at ATI's solution with the Straton. Similar design, concept, with each having a unique approach to something to make them unique. I think both set the standard moving forward with their respected designs. Cost, well, I think is a sticker shock to many...
In the case of the coral care gen 2. With due respect to the video they produced I think BRS tv did these lights a disservice that may be a cause and effect (lack of interest). Meaning they said the light is best suited towards a mixed reef and also said that to get the "blue" look you dial down one bank of lights which raise a question of cost and par. Personally speaking there are more to successful tanks than PAR and color is subjective so both should have been removed from the video. Par != success
TL; DR - to get that blue look most US hobbyist prefer you dial down too many white lights thus reducing power (par) and making it not cost effective.
Note: no dog in the fight but I'm considering moving away from my 4 kessil a360x for these lights for two reasons. One I prefer the spectrum they offer at base and two I love the passive power and cooling. No bricks equals safer aquarium and house should a leak spring. I like the design.