Once again, the Roland MIDI import doesn't touch the MIDI file in any way, just uses it to load the style division.

I'd say yes, you HAVE been using some shitty software! I guess the difference is that Roland's tools aren't MIDI 'translation' software, it's simply MIDI 'import'. It doesn't make any assumptions, but leaves it up to you... Good if you know what you are doing, not so good if you don't (mind you, if you don't know what you are doing, best of luck! )

One thing Roland pretty much always gets right is MIDI files and how to edit and change them...