I think this describes a lot of how software is developed (which just goes to show how immature that part of the industry is.). Similar contracts and agreements exist between manufacturers of the brake system as well but if there is an issue there where the ABS system doesn't prevent lockup in 1% of cases, then the problem is solved or the car launch is delayed, because that's what the system is designed to do. The problem here of course is that these things are seen as gadgets without safety aspects and there is no regulatory oversight.

I guess it's also up to buyers: don't buy cars with shoddy infotainment.