Well, I did not read the article, but will note that the hedge fund in question was never anything other than a political creation and was set up as a scam in its own right.
Additionally, it is close to impossible to invest in markets when you do not really have faith in and believe in markets. His blood lines (and hers) never indicated that he/they might have any particular insight into such activities. I seriously doubt that a single investor in that fund ever had any trust in Mr. Mezvinsky's investment knowledge or skillset.
One other comment: These sorts of guys rarely just go away. He will be out there within a few months raising money from the same investors. Likely, he is not so much closing down the operation as much as he is resetting (attempting to reset) his baseline for future returns.