The problem with stack ranking is when companies are international. Cultural nepotism ends up making this system completely fall apart.
Case in point, I had an Indian engineering manager report that had his staff PiPs entirely down racial lines.
Thankfully, jira and our GitHub repo proved otherwise. I gave the Indian dev lead his own PiP.
By the next year he wised up but I had a long enough list to can him for other reasons. Meanwhile, a whole year had to go by before we could can this pain in the rear.
This type of BS is why companies like Microsoft lost to companies like google or apple. I'm not surprised blizzard is going down the same rabbit hole.