If I could add one thing that seems reasonable to an ignorant synth design/programming layperson like myself, it would be a toggle to "relax" the envelope of the LFO shapes so they don't always have to be brutally on point, opening the door to more gentle/shifting soundscapes. This dream world would also allow the toggle to work for when Osc2 is in LFO mode (or even to ONLY have an impact on Osc2 rather than the normal LFO, since the other shapes are so audible when using Osc2). Doesn't even have to be adjustable, just an on/off toggle somehow, somewhere. For me, this would be tremendously more useful than MPE, for example.
At any rate, I love it for what it is, and plan to have the OB-6 for a very long time, indeed. There's definitely some nits that, from the outside, seem solvable within the given interface (I'm a mobile UX designer/researcher for 20+ years). But, again, hardware interfaces and the software supporting them are very connected, so something like this could be much more costly to implement (time = $ for small companies) than it would appear.