Either Roland's ad copy and brochure producers are incompetent, or their R&D team is.

So far, I've seen the R&D team make stupid decision after stupid decision, so I tend to assume that it is they who are the more likely to mess this up.

Don't forget, a similar kind of audio looper just got added to the VR-09 performance keyboard. Roland tend to use what is currently available on other keyboards rather than innovate for the arranger division.

And sorry, I don't honestly CARE 'where' the BK9 is designed. Those are the bozos that dropped the CS in the first place, and have brought out at least TEN arrangers since then without the feature on it... Hardly confidence inspiring. In fact, since the G1000 (and some of the G70's features) Roland have done NOTHING but go backwards ever since. Sure, the SOUNDS continue to improve (somewhat, most notably the drums and guitars), but I can give you a laundry list of incredible features Roland have DROPPED over the last 15 years or so. Let us hope that FOR ONCE, Roland have blundered in the other direction and forgotten to tell us about something they ADDED, rather than remain mute about what they dropped!

Roland's ad copy is usually pretty spot on. I'll be very happy if the Chord 'Looper' is actually a Chord 'Sequencer', but it seems quite a bad blunder to misunderstand its functions that wildly if you assume that most everything ELSE is correct.
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An arranger is just a tool. What matters is what you build with it..!