VC's main goal is for their investments to grow and grow fast. They know most of their companies will fail, and they don't want to waste their time on the companies that will only net them a modest return when they can focus more of their efforts on the company that will net them a 20x return. It's actually in a VC's best interest for you to either be a rocket ship or for you to fail completely, as mathematically it's the best use of their time for maximizing profits.

VC's aren't trying for all of their portfolio companies to be profitable - they're trying to fund 1 company that is going to be uber profitable. There's a saying from the dot com investment days - you either invested in Google or you didn't.