It has a finger on the long term trend of decreasing relevance for labor and increasing relevance for capital as factors of production, but it's certainly not a metric I'd choose and that's why I tried so hard to steer towards something better.

One can imagine a world where productivity increases, the need for old jobs is reduced, but newer, better jobs more than replace them because the economy is experiencing genuine growth. Self-serving capital rhetoric will push you to always imagine it this way, self-serving labor rhetoric will push you to never imagine it this way, but good policy lies in figuring out what's actually happening in aggregate and responding accordingly (the framing I tried to push).