Firmware updates blow away any customizations. So you need to bootstrap things again after each update.
Updates can be deferred, so the process isn’t too disruptive.
Edit: oh, yeah I see what you’re getting at. That direction could work, and I used to do that years ago, as it turns out, but these days I am frequently not on a familiar WiFi network when I’m using the tablet, so cabling has been more practical.
