The old adage of the engineer paid to know where to tap an X comes to mind: https://quoteinvestigator.com/2017/03/06/tap/?amp=1

Frankly anyone telling you they can measure the value of a line of code without any background knowledge is selling BS.

But I welcome this new BS system as the previous system of managers not so secretly counting total commits and lines added was comically stupid.

Network effect is a hell of a drug