This is a citizenry education problem, a media problem but not a metrics problem.
These metrics are built and used by people who do apply multiple measures - every day. If you are in a trading or macro oriented role, you will not be using just one figure. You will make the effort because your incentives and training encourage you to do so.
The non-specialist, which is most people, is never going to have a set of metrics which make it easy, because no metric can overcome all the practical and technical issues strewn across the path to producing it.
These metrics are built and used by people who do apply multiple measures - every day. If you are in a trading or macro oriented role, you will not be using just one figure. You will make the effort because your incentives and training encourage you to do so.
The non-specialist, which is most people, is never going to have a set of metrics which make it easy, because no metric can overcome all the practical and technical issues strewn across the path to producing it.