Feedback exists and it's working through SysEx.
It would be interesting if Arturia could officially publish the full MIDI Implementation charts, including the SysEx "cmds", like it used to do in the Experience series User Manuals (The Player and The Factory at least)
Right now, we're stuck with reverse engineering the MCC and trial'n'error, which was how I was able to find a very fortunate and useful hidden feature: we can "force" the other (not available through the MCC) buttons into sending out CC/Notes etc. In my specific case, this allows me to detect when the Shift button is pressed/released, which is a key feature to expand the functions of the buttons, knobs and pads on-the-fly on some script-driven DAWs (like Reason, Live, etc).
I only wished this was also true for the older Experience controllers
Anyway, I hope this cool hidden feature won't go away from the BeatStep and BeatStep Pro on future firmware revisions!