It's meant as an option for those whose particular applications make it worthwhile. It's not intended to supersede the CMC 6. My guess is that plenty of people will be more comfortable with the established, more "normal"-looking amplifier. Not everyone needs the ultra-small size, light weight, and/or those extra few dB of maximum SPL.
--Just in case it didn't stand out in the video or on the Web page, the current draw of the CMC 1 at 48 Volts is about half that of the CMC 6. Even at 12 Volts, where the CMC 6 is already twice as power-efficient as it is at 48, the CMC 1 draws only 3 mA rather than 8. So people with Sound Devices and other gear that has 12 or 15 Volt phantom powering might welcome that as well, with the caveat that when the CMC 1 is powered at only 12 Volts it no longer has a higher maximum SPL than the CMC 6 does.
--best regards