> effectivly using 2 stalls to charge
Only for stations that aren't at the end of a row or lack a parking spot adjacent. And only if the "blocked" spot can't be used by another "mirror image" car design.
I mean, gas stations have been dealing with this problem for decades (different car designs need to pull through along different sides, so sometimes my Mazda "blocks" the two pumps because other cars can't pull in until I move) and we've all survived.
And in any case, unless you're trying to charge on major corridors on high traffic weekends, it's academic anyway. Over 30k miles and almost three years, I can count on one hand the number of times my Model Y has had to wait for a charger spot.
People are making way to big a deal out of a minor issue, basically. Standard Tesla discussion form.