It's about the erosion of computing freedom. How distant is so helpfully nudging you to use a particular, blessed program for your security and convenience, to just mandating it? See Apple, for example, who has successfully normalized the device manufacturer dictating what software is allowed to run on the OS, and it's conveniently the one from its own store, paid for through its own gateway and sometimes whose cloud storage and network functionality is controlled by state agencies. That's something that really matters.