In their article, the author discusses the congestion and cost of making p2p transactions. They state: "This is fine if you’re just speculating, trading hundreds/thousands of dollars worth of tokens at a time. But it is crippling if you’re actually trying to build an app that people use for anything else." and "So if you’re trying to build anything even remotely high-volume atop an Ethereum token — forget it. Your entire business model is catastrophically doomed at today’s prices."
https://techcrunch.com/2018/01/07/the-cryptocurrency-bubble-is-strangling-innovation/How can those who want to create value overcome these restrictions? They do mention: "A lot of interesting work and research has in fact been done regarding scaling Ethereum: sharding, Raiden, Plasma".
