I’m pretty sure it’s the vehicle's job to request the correct charge profile from the charger.The adapter plus surcharge on the Tesla network may only get people a lackluster charging speed as Tesla also needs to deal with potentially hundreds of different unique charging profiles and architecture. Charging at high amp is no joke and no charger want to be responsible for a fire or breaking electronics in the vehicle. The engineers for battery management is not sitting across the aisle from engineers writing code and specs for the superchargers unlike Tesla. This is why the extremely long handshake from EA and being extremely conservative by throwing out errors.
This is not a problem that can be fixed until car manufacturers start using some kind of unified infrastructure.
This is like the early days of computer hardware. Absolute a cluster F of incompatibility until IBM unified them. Same with GPUs until DirectX unifies them.
edit: what @mongo said.