Well my comment was not about having control over the software/firmware though that will be cool.

My logic is that well tested, polished software/firmware have very few bugs and hence most of the updates they get are feature additions or improvements to current functionality (examples in an EV could be updates making the BMS more robust, tweaking the regen modes according to feedback from the users, etc). Poorly tested, half baked software/firmware will be full of bugs and broken functionality and will lead to ‘updates’ where all the changes are correcting broken functionality and serious bugs. This will be an unpleasant experience for the user and we should hold companies accountable when they do shit like this