There's going to be loud, destructive friction when a 10-15 year old platform reduces the functionality available to its apps. Security models do need to evolve, but Android was introduced as a platform suitable for deep personal customization with few mandatory boundaries.
This was a competitive distinction against Apple's closed "safety first" platform design in iOS and led to an ecosystem of applications that took advantage of all these extra possibilities. As Google tightens its grip over the platform and pursues more aggressive limitations for security reasons (and whatever other ones), it's inevitable that many publishers and users are going to be deeply frustrated when the features that made their device theirs are no longer available.
(And incidentally, the restrictions on the Apple side have nothing to do with the application development language. I don't know where you would get that idea from or how to even make sense of it. It's just the nature of Apple's original design philosophy for iOS, where apps were deeply isolated and had no more capabilities than were necessary. Largely, Apple has been gradually adding capabilities to heavily-restricted apps over the lifetime of iOS, while Google has been moving in the opposite direction because they each started from opposite ends of the design space.)