I worked as a manager in a big tech company that used metrics such as amount of PRs done, amount of PR reviews and etc. At least with those when there were ques

I worked as a manager in a big tech company that used metrics such as amount of PRs done, amount of PR reviews and etc. At least with those when there were questions based on those metrics - I was able to contextualize and explain to upper management why for a particular eng they show a dip even when their performance is stellar. How am I going to do that with your blackbox metrics when this need arises? Also I don't have a Google account, so I can't even get pass your frontpage that has no info?