This is a serious deficiency that should not be glossed over. I don't believe the Yamaha system is proprietary (or at least they have licensed it to other brands.) Korg, Roland, and Orla all have Yamaha-style simplified chord recognition as an option. Technics also used the Yamaha system in the past. However, if someone is used to the Korg / Roland / Ketron system for minor and 7th chords, when they switch to Yamaha they might as well be learning a different instrument!!

I agree with the original poster. If Yamaha is not willing or able to duplicate Roland's "Chord Intelligence" exactly, then at least in the "AI Fingered" mode a single note should be recognized as a major chord. Also, I agree that the "On Bass" functionality should have its own button on the panel. It could also be a function based on the MOMENTARY state of a control pedal. The Tyros series are well-integrated, and they can actually do MOST of the ten things in the list. But their simplified chord fingering is different, and a major barrier to someone switching from other brands.