It seems to me that all professional musicians I have seen using the Kemper Profiler use it exclusively in a live setting, as opposed to in a home audio setup.
In this link you will find over a thousand artists and producers with kempers on albums, in studios, at home and live.
Plenty of photos, videos and info links.
For seven years now, social media and forums is filled with people making music with kemper profilers.
You just haven't looked enough to see it.