I might agree with this, but if it's the case, then some folks need to stop pretending each and every hot internet startup is Disruptive, Revolutionary and Socially Impactful. And the weight given to What SV Entrepreneurs Think should probably be reduced if most of them are just building better ways to order a pizza.
There's nothing wrong with coming up with a better way to order a pizza. But it doesn't make you a noble visionary of things to come.