I'd love to have this for home automation purposes, but I can't be in favour of this knowing what the standard FAANG companies will probably abuse this standard for, let alone scummy ISPs.
With its band steering capabilities, I'm convinced WiFi can already make an approximation of your location. It can't deal with things like reflection and interference for positioning of course, but it's still pretty close to working already.
Of course, I mean this as something I'd like to turn on and integrate into Home Assistant, not as something that every ISP router should come with (which is what I fear will probably happen).