People who write such sentences have no idea what they are talking about or are being intentionally naive for whatever reason.
Just because your one-sentence solution reads simple doesn't make the actual solution simple. Because such a solution involves changes to laws, changes to entrenched interests, changes to distribution of money involved in the whole system, and changes to balance of powers between stakeholders. Unless the push for such changes is significant enough to overcome the current state of affairs (due to public opinion, redistribution of power or money, etc.), nothing will happen.