There are some folks that will NEVER buy a Tesla. They can't handle the rapid improvements and changes that happen with the updates. They need to have what they bought and have it not change. Change is hard for some folks, maybe many folks.
Since Tesla supercharging is propietary, all of the other brands, VW, Audi, Porsche, Volvo, Rivian, Lucid have jumped onto the CCS/CHAdeMo standards. I suspect with Europe going CCS, that may eventually win the majority.
As you may have seen recently, USA is not a united country. Different strokes for different folks, even if it makes no sense.