It seems very strange to me that Rivian, who have never been on a firm financial footing, really want this to be a hill to die on. It’s so easily fixed and costs nothing and would only help sway people over.
However, I do think the fact that Tesla does not offer CarPlay, makes worse vehicles, and somehow manages to have some of the best selling vehicles, does validate their argument.
Personally I use CarPlay only rarely, every few months only. And when I do, it’s because I need directions, and these cars have built in navigation anyway.