Hi Scott
I'm not a jazz pianist, but out of interest I tried your 5 examples on the KN6000. In pianist mode they were all recognized as per your posting. In fingered mode none were recognized however I believe that is the same on the 5000.
By the way I am reliably informed that since rectification of the original chord recognition problem on the 6000 there has been further fine tuning of the chord recognition on later software upgrades, so if you get the chance to try the 6000 again make sure it's upgraded to the latest version, 6.0.
Regards
Peter