mc... audio loops in an arranger (as opposed to drum loops, that it doesn't matter what chord gets played) is an entirely new feature that NO-ONE has done successfully in an arranger yet. Or a computer, for that matter.
Ketron DEFINITELY have to 'prove' that this feature can work. I'm not one of those saying Ketron is just out of the woodwork. But this has it's downside. Unlike Dom and the MS, they DO have years of surely being able to gauge that if a feature is hyped (for years) as 'revolutionary' and fails to live up to that hype, there is going to be quite a backlash...
Now, do me a favor. Take your own advice. Wait until YOU have played an Audya before you leap to it's defense... Play some Latin, play some jazz, heck, play a Beatles tune..! Feed it something other than just kindergarten chords, and THEN tell us it is working fine... You are assuming as much as the rest of us, with MUCH less evidence

I HAVE heard it do the simplest of chords. And read from someone that HAS played more complex (if you consider a dim complex... I don't). He has described what happens, and it ain't good.
Have you heard it do the complex ones? Why not wait until you can refute what we are inferring (quite reasonably, IMO), before you make assumptions. We are not assuming anything. This is what we have been told it does, and heard Ketron demonstrators avoid those chords like the plague.