Comment by embedding-shape

You're only flying blind if you make decisions not looking and thinking. Analytics isn't the only way to figure out "what your users actually care about", you can also try the old school way, commonly referred to as "Talking with people", then after taking notes, you think about it, maybe discuss with others. Don't take what people say at face value, but think about it together with your knowledge and experience, and you'll make even better product decisions than the people who are only making "data driven decisions" all the time.