Then why can't "the best ux design teams in the world" design CarPlay apps that work? Regardless of GM's ulterior motives here (follow the money), they're not

Then why can't "the best ux design teams in the world" design CarPlay apps that work? Regardless of GM's ulterior motives here (follow the money), they're not wrong. CarPlay stinks. It indeed has caused me distracted driving while I execute a complex task such as, oh I don't know, choose a song/playlist. The worst offender by far is Amazon Music, which is nearly unusable, though Apple isn't too far behind. The mapping apps are just as bad and getting worse. Want to report a hazard etc. in Apple Maps? You have to tap a chevron and wait for a fold-out menu to appear, it's like 3 taps deep. By this point you have passed the hazard and become one yourself as you fight these terrible UIs designed by... you guessed it, "the best ux design teams in the world". And yes 90% of it are the apps but at its heart CarPlay is just display mirroring. The UX of most CarPlay apps is downright TERRIBLE.