I tend to agree to a certain extent. WiMAX did similar when it was being promoted as the next best thing to sliced bread. Current problem with WiMAX is still the obvious - no handsets, no coverage. I do think they should be using it (IMO) to go against DSL/CABLE + Phone service as a form of fixed wireless.
If it was available and cost less than DSL/Cable + phone, I'd use it.