It’s a very thin argument about it being buggy and/or users picking up their phones when that happens. There’s no way they have data to quantify that. I use voice commands exclusively and as others have said the only things I wrestle with are climate and non-integrated functions. It’s way safer to do AA or CarPlay in my experience.
It’s GMs bet to lose here. I would immediately pass on a vehicle without CarPlay. My old Toyota had a horrible interface and I was quoted $300 just to update the map, not even a new radio, literally just a software update. No thank you.