We've got an A&N thread about this "Diversity Space Tool" here:
I have many posts there that further elaborate on this outrageous endeavor and how it came to be.
In particular, there was a 2017 GDC presentation about this thing by a couple of its creators, as well as a short summary paper by the MIT contributors.
http://www.digra.org/wp-content/uploads/digital-library/DiGRA_2019_paper_378.pdf
This was not created by Blizzard directly, but rather by King, a different Activision subsidiary best known for Candy Crush. It was originally stated to be tested on Call of Duty: Vanguard and Overwatch 2 with positive feedback from those teams, but to what extent it's seriously being used as a development tool is unclear, especially now that Activision-Blizzard is in damage control mode over this. Furthermore, it is explicitly state that this endeavor started in roughly 2016 to appease Anita Sarkeesian.
Since people here were wondering, this is what the 0-score "norm" is, stated to be based on either "action games developed in the Western world" or "first-person shooters". Characters are apparently presumed to be the norm unless the contrary is made explicit, especially when it comes to sexual orientation.
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