The spec saying border routers must have an option to allow internet access is a weird thing to call Enshittification.
One, it has nothing to do with the actual concept of Enshittification. This isn’t an online service that lured you in with cool free features and has slowly degraded the experience to increase profitability. It’s a spec for a type of product that is adding more standardized features.
Two, it makes things easier for the consumer so you don’t have to do a ton amount research about which features the different Thread 1.4 certified routers you are looking at have.
And three, if you were using the lack of an internet option as a feature for picking a router, you can do the exact same amount of research on border routers to see if the internet access toggle works.
You could also just not give the border router internet access.
I’ve always felt like people were overblowing the pocket lint thing, since I’ve never had it happen to me. Just realized that it’s because my pockets are too small, so the only pocket I can use is my back pocket with the port sticking out.