This is what really bothers me. We have USB, VGA, DVI, RJ-45, 3-pin electrical (well, that's one hiccup across countries, but at least it's usually the consistent in the same country), why is it so hard to standardize a multiphase port?
If I can't buy gas from Shell with an Exxon fuel filler of a particular model car and there are mostly Shell stations in my area, I'm not buying that car.
Standardizing will only benefit electric car manufacturers. Surely, they can all get together and agree to one standard as they will benefit from any third party willing to create a charging station franchise. IMO non-standard in this case is a very poor business decision.