Not to mention, it’s a standard now, and the old Supercharger protocol is being phased out in favor of another standardized one (I forget which). Further development done on their chargers from here on out is going to be done by a consortium of companies rather than in-house anyway.
Just curious. Proton takes all of that effort out of the equation, plus I’m willing to bet there aren’t as many driver problems, if there are any at all.