You aren't really the exception, instead you're just fortunate enough to have one of the few in-dash navigation systems which isn't absolutely terrible.
Most of the features you've named are exactly what Android Auto/Carplay provide, but without limiting you to just a single maps/navigation vendor.
You're likely leasing that vehicle for 1-3 years. Do you think that if you purchased that 4-series that the navigation would still be updated and solid by the end of its 9-15 year vehicle lifespan? I certainly don't. But I do an apps platform like carplay/android auto will continue to provide quality apps for at least that long.
CarPlay/Android Auto certainly improve quality on average for most cars, but I'm not convinced they will solve the problem of outdated technology.
I previous had a Mercedes with "Apple Certified Connectivity" which was great, until they switched to lightning cables and the connectivity broke.
Whilst I'm sure CarPlay/Android Auto will last longer, I don't believe there won't be any breaking changes in future that will break compatibility. Given that we replace phones a lot faster than cars I can see a future where there are cars which only support CarPlay version X, and the standard is now version Y.
At that point you then end up with no navigation or media, because you aren't going to use an older phone just to have it work with your older car.
Most of the features you've named are exactly what Android Auto/Carplay provide, but without limiting you to just a single maps/navigation vendor.
You're likely leasing that vehicle for 1-3 years. Do you think that if you purchased that 4-series that the navigation would still be updated and solid by the end of its 9-15 year vehicle lifespan? I certainly don't. But I do an apps platform like carplay/android auto will continue to provide quality apps for at least that long.