What is this....
.... "broadcast TV" of which they speak?
I've lived in here in the good, old, totally demented US of A for my entire life (outside of six months in France and several visits to Scotland), and I haven't pulled in a broadcast signal on a TV since 1984.
To be fair, nationally something like 19% of TV owners are over-the-air only, though the figures vary widely among markets (e.g. 5% in Boston and 25 in some southern markets). I'm going to take a wild guess and suggest that most OTA folks aren't going to have their own 6 GHz, short-range WiFi gear, nor live close enough to anyone who does to make a difference.