I can see the use of this if it would include a patch librarian.
At this point managing patches for the A4 sucks and this could potentially improve it a lot.
Also, the editor would become extremely usefull if it would work in M4L or ever better: function as an AU/VST plugin. This would enable the possibility to do DAW automation.
As a standalone solution I don’t think I would use it at all.
Besides this: kudos for the initiative, nice work indeed!