At least on the outside of the packaging, I don't think the vast majority talk about spectrum over allocation.

Of course many issues like that could be solved if APs shipped with their signal strength on low rather than blasted to the FCC limits. But I don't think we'll see that changed any time soon.

Unknown unknowns. Does the average consumer even understand that contention is an issue?

All the average person sees is the number of bars in their wifi connection UI, which AFAIK doesn't take contention into account, only signal strength.

WiFi bars should be color coded for contention. Green = rf is all mine, Red = get neighbors to turn down transmit power.

And the hotel didn't advertise that they weren't in the ghetto.