[stale2002]

Because it is not worse candidate selection. It is better candidate selection.

Why wouldn't a company want to target groups that other people are missing? It means that you can get good candidates for cheap.

Obviously you don't lower the bar. You kept the hiring bar exactly the same, but get more people from certain groups to apply.

IE, if you can find someone who passes your hiring bar, but no other company has noticed, that means a cheap candidate.

If you target the group that everyone else is going after, they are going to be much more expensive for a given quality level.