Wrong. If you have enough money, and your gains are sufficiently outsized from a win, then any spread bet across dozens of companies will end up making money. Being a VC in Silicon Valley over the last 20 years is a game you can't lose, as long as you have enough money. And let's not forget, they're not even playing with their own money, they are playing with their investors money.
But it doesn't mean you're a smart VC it just means that you're a rich VC. They have enough high profile misses to show they have no idea what is going to be successful. They passed on Google, Apple and Facebook with a combined market value of almost $1.5 trillion dollars.