It's a WS, NOT an arranger. Fills have to be cued up in advance, a completely different (and completely unintuitive) system to the arranger. It incapable of adjusting basslines to account for inversions, and 'slash' chords, and of doing most of the basic arranger tricks.

And, my friend, is JUST as capable of being used for 'cheating' (whatever THAT is!) as an arranger or an SMF...

No system is wrong in and of itself. It's what players DO with it that makes the difference...