GM ditching Apple CarPlay has dealers concerned

Wow… this is a comical degree of self-sabotage. This is the one of the dumbest hills GM could have picked to die on. My sister and her husband were thinking about getting one of these, and I think they might rule it out simply based on this.

I have an android and am not affected by this but this still sounds incredibly stupid. There are 2 on the market, why would you not want to have them both? Especially when it's been done before and it's a good chunk of potential buyers.