The most sold EV brand in the US with about 2/3 of market share doesn't allow CarPlay either.
Now don't get me wrong, I want my Apple Carplay too. I wouldn't want to buy a car without it.
But the argument that "as the shakeup due to EVs begins, even loyal consumers will be considering other makes" I just don't see happen in real life today. Most EV buyers chose a Tesla. No CarPlay or Android Auto in that one.