I disagree with that. If you don't know a long term passion then obviously you can't just find gainful employment. The point of 'follow your passion' is more of opportunity and what your passions are worth to you. You don't just quit your job and launch into the wild, you make responsible decisions over time that can lead you into something that is more fulfilling in your life.

I'm glad you figured out what works for you, and I agree the mantra of 'follow your passion' is very misleading. But if we're all comfortable being where we're at nobody goes anywhere. And at the same time only following what you wanted also tends to lead nowhere.