The premise of the author is the separation of economical benefits from what you are passionate about. Sure, if you are making money (more than just making ends meet) by doing what you love, you can have your cake and eat it too.

The simple truth is do you want to enjoy the journey following your passion, knowing very well there is a slim* chance of financial success or do you want to find a comfort zone and derive "borrowed" happiness. The borrowed happiness is from all materialistic things, safety, comfort, peace etc.. that you can afford/buy.

-*I am sure there are people who have passions that also have tangible financial success guaranteed. Good for them!