I find that as a developer, freelance becomes extremely difficult to manage client expectations with cost. They always want all of the features, without breaking the bank. However, I could see if you take that leap, then there could be more time to manage that. I have yet to have the guts to take that leap.
Part of the job of being freelance is expectation management - most clients want everything on a plate but you have to make them prioritize if they're on a budget... what is necessary and what is a nice to have.
I'm the writer of the article, I'll answer any questions you may have on here!