Apple CarPlay may have given automakers just barely enough of an "out" that the pressure is reduced. The only time I use the system's own interface is to update its firmware once a year, and the only time those updates have noticeably mattered was to make my car compatible with CarPlay over USB Type-C.
Given this, it's surprising to me to see reluctance to adopting second-generation CarPlay, but someone who knows more about the tradeoffs can certainly account for that better than I can.
I just got an older (2020) truck with an older generation Ford infotainment (SYNC 3) with CarPlay/Android Auto. I use AA, and its huge latency and the difficulty of use (capacitive touch, the physical buttons on the media console are useless) make it hard to use. I notice my eyes are locked on the console for much longer than necessary because it's so hard to press things and then wait for a response, or go back if the wrong thing got touched. I don't have my eyes on the road and it feels dangerous.
If they had just made the radio tuning knob into a scroll wheel for the UI, it would be so much easier, quicker, safer to navigate the screen. But I know they'll be going in the opposite direction due to tech trends. We need hackers to save us.
Given this, it's surprising to me to see reluctance to adopting second-generation CarPlay, but someone who knows more about the tradeoffs can certainly account for that better than I can.