Your audio example is majors, minors and extensions. I don't hear a single sus4, aug or diminished in it.

Somebody wants to prove me wrong, play a style, mute everything but the guitars, and play some of the audio chords and some of the MIDI chords.

Look guys, think about it for a minute... if the MIDI chords were indistinguishable from the audio chords, why have the audio chords AT ALL..?

How about this progression?

C Csus, Cmaj7 Cdim
Dm7 G7sus4 G7 C Caug
Fmaj7 Dm7 Gsus4 G7 Gaug7
C Csus4 C...

That ought to answer it once and for all. That is a good mix of audio only chords, audio+MIDI notes, and all MIDI notes.

Look, I'm sorry, but telling me I can't hear stuff when I can? Please! And dragging out examples that don't address the issue as some kind of proof?

Look, it's a great arranger. It does some things that nothing else does. But it ain't PERFECT!