>The marketing papers over this in misleading ways, and that is bad

It's not a weak argument at all and the misleading marketing is exactly the reason it is not. In fact, Verizon has oversold bandwidth (or at least offered it for less than they are willing to accept).

But, what you seem to be effectively saying is that customers are at fault for buying an advertised product which touted the benefits they desired at a price that was acceptable.