Privacy. “Smart” TVs track anything and everything you do.

Knowing Apple, they will still abide by the law, but in the most minimal way possible.

IMHO the new side loading feature will probably be hidden somewhere, disabled by default, and if you enable it other related features that you may need or like, will no longer be available to you. Or you’ll get warning nag screens every time you open a non-App Store app.

I hope this will increase competition and decrease Apple’s power over the platform, but me personally will never use side loading. I care about the privacy and security implications. Just look at the amount of scam and malware apps on Android and you’ll see where you might be going.