In the past the argument against SAE Combo adapters was that there were almost no installations of SAE chargers, but that is changing, especially now that BMW seems to have committed to the SAE standard and is starting to install their own chargers, so perhaps the time has come to replace the standard J1772 Tesla adapter with an SAE Combo adapter that could do both AC and DC charging.
I'm aware that a single adapter that was used for J1772 AC and DC charging would have to have some way to ensure the bottom plugs weren't energized when doing J1772 charging, but that seem like a pretty trivial engineering problem to solve, e.g. with a mechanical switch or a blanking plug on the adapter.
I'm aware that a single adapter that was used for J1772 AC and DC charging would have to have some way to ensure the bottom plugs weren't energized when doing J1772 charging, but that seem like a pretty trivial engineering problem to solve, e.g. with a mechanical switch or a blanking plug on the adapter.