That's where common misconception and overall negative attitude to this subscriptions lie.
Nobody asking you to pay extra for features included in purchase price. They are extras which are really flexible. You can pay for example for Innodrive feature upfront when ordering car and nobody is...
I think many are missing point here, as I read OP post, I kind of relate it to my experience. I personally think car itself is great, it is Porsche attitude and Dealers incompetency that sucks and that what make me frustrated most. I get that any car has some issues, but just acknowledge them...