Can't you already disable access to Contact, Calendar, Reminders, location, etc per app on the iPhone?
Android apps ask you if you want to update to the new version or stick with the old one indefinitely; privacy settings are non-negotiable. iOS apps ask you as they go: If iOS had an SMS API, Facebook wouldn't need to ask you until you enabled two-factor authentication (assuming that's all they use it for). And you could turn it back off later if you weren't comfortable leaving it on.