Speaking as an electronic Engineer and programmer I don't see any technical barrier to implementing recognition of location. I see cheapskating, I see lazy thinking, and timidity.

I do see what they are doing, viz using mobile links to save on wire. The cost of which is not just the copper (or aluminium in legacy cases). But a simple protocol on dedicated links would cover that. But it would add minimal cost, and minimal complexity.

The GF has a piss poor BT broadband and a router cabinet 200 yds away but she would have to provide the wiring to connect. They suggested she used her mobile to connect, as she argues 100 yds away from the house, when some idiot yoof brought a pole down in a cul-de-sac. She is literally the penultimate house on the 5 mile wire run. Basically their attitude is "you is too insignificant, you is rural, most of our customers is townies"