Not enough customers
Consider this tweet:
Might not the same be said for Gospel work? We can have the greatest, most well-thought-out theology in the world. But if we aren't seeing disciples made (and, ideally, disciples who make disciples who make disciples), the blessings that we hold in our hands will not be passed on. We will be of benefit to no one. Solving the "content" issue does not automatically solve the "distribution" issue.