Also, several mega-cap and high-beta S&P 500 stocks have frequently exhibited higher daily and 90-day realized volatility than Bitcoin.
That doesn't mean that BTC is a better investment (it is not) and it doesn't mean these stocks with high volatility are a terrible investment (they may or may not, but funds of good indices in very strong markets, are).
The article should instead focus on how potentially overvalued SpaceX (and Tesla) is.