They've been paired for a long time as you point out; however, that's missing part of the story.
In the past, they were at least paired from the factory. If you pulled your Xbox 360 out of the box, and never connected it to the internet, it would still work.
The PS5 refresh's disc drive is not paired, even from the factory. Without an initial internet connection, it will not work, even out of the box. Also, unlike the Xbox 360, it un-pairs every time you sign out of your personal account.
In the past, they were at least paired from the factory. If you pulled your Xbox 360 out of the box, and never connected it to the internet, it would still work.
The PS5 refresh's disc drive is not paired, even from the factory. Without an initial internet connection, it will not work, even out of the box. Also, unlike the Xbox 360, it un-pairs every time you sign out of your personal account.