No what happens from using those metrics is that you filter out all the people that care more about doing their job well than gaming metrics. Fraudsters tend to do really well in those situations.
All of a sudden all of the terrible, horrifying methods of measuring lines of code, commits, tasks etc. resurfaced, like world was hit with an amnesia meteor.
Managers understand that metrics are meaningless. The idea is to have something to point at to scare engineers into jumping higher.