Or they could replace the "person to blame" field with a commit revision. It is less personally offensive as the "person to blame" field and still gets to the same analytic data for reviews.

I do agree a "person to blame" field was obviously implemented by a "management only" oriented person to probably cover his/her own ass. Essentially this is a scorecard to give to his higher-ups to say "Hey look Bob is the one with all the issues, no me".