> it's much, much easier to get devices to work when you control at least one side of the server with skilled professionals rather then your average home user.

No, practicality is not the main reason these unnecessary connections are added. The main reasons are 1. to sell and enforce subscriptions and 2. to collect and sell data.

Is it just easier to get your car seat warmers to work when they can connect to the internet and make sure you're paid up?