It should be noted that Goldman Sachs does have some stake in crypto - They were the majority stakeholder in Circle back in 2015.

The fact that Goldman Sachs is criticizing crypto is definitely in their business interests, there's no question there. It's a market that they don't have a strong foothold in, while several other major institutions are doing much better. This however does not make their criticism any less valid. Look at the facts in the article, rather than writing it off because of the author.

It's extremely troubling that all of the coins plummet everytime Bitcoin drops in value. This is either an indication of a lack of knowledge on the part of investors, a lack of differentiating features among the products on the market, or a systemic problem with the trading market itself.