I think this article and others like it are written to discourage people from investing in cryptocurrencies to prop up their interest in the current money system, which is controlled by the big bankers on Wall Street.
In my opinion cryptocurrencies are the embodiment of a true free market system, where literally the market determines the value, without external manipulative influences. That said, articles like this seek in part to manipulate the value of cryptos by decrying them.
I agree Henry, articles like these are usually made by someone who knows nothing about the subject, in this case cryptocurrency, and has likely never tried to use them.