I think what the article is saying is that 5% that own 95% didn't buy in at inflated prices. Those who own just 5% of bitcoins likely bought high, so they will be in the red on a crash. Those with more coinage tend to have bought low and will still be in the black if the market crashes.
E.g. the Winklevoss twins bought 120,000 bitcoins at $10. If the market crashes to $1,010 from today's $16-17,000, they'll still be in the black by $120MM. Sure, on paper they'll have lost a billion dollars, but they're still not hurting.
E.g. the Winklevoss twins bought 120,000 bitcoins at $10. If the market crashes to $1,010 from today's $16-17,000, they'll still be in the black by $120MM. Sure, on paper they'll have lost a billion dollars, but they're still not hurting.