Not really I read it and it is the same old argument, saying that bitcoin does not have value at all, but maybe we are all imagining the huge amount of money invested by the miners to mine bitcoin and the technology behind bitcoin which solved several problems that until that point were not solved, the volatility comes from mainly two factors the uneven demand for bitcoin and its limited supply.
Same old argument with the same purpose and that is to bring down bitcoin. All they say is volatility but investors who believe that bitcoin is already volatile yes continue to invest in contrast to the supply and demand aspect in the economy. Which means when investors buy they expect other would invest too and that there will be more demand than supply.