I think criticism is valid in regards to TPS. But for storage it's misguided. The blockchain is meant for consensus, storing reddit comments or cat pictures is an expensive and inefficient misuse of the blockchain.
That's the smart plan, I think. I really want to take a crack at those storage markets in-browser, use a distributed hash table and WebRTC to pay people for leaving a browser open and allowing us to store stuff on their hard drives!
When gigabit class connections are pervasive, the idea of paying people to store data in an open web browser is maybe feasible, but certainly not profitable for any involved party.
Before then? I dont even see the point.
Furthermore, a 1Gbit DL/200Mbit UL link costs $13.70/month where I live, so I think it it is already very much viable, but maybe the distribution will be skewed towards more internet friendly countries :)
But yes, I realize that for storage it is ideal to use another service, I just fear normal developers inability to tie the two safely...frameworks like Embark do seem help there (though I find IPFS too slow for my stateful needs).