Are they considering DOR and NPQ part of attrites?
Keep in mind, different people keep different accounting methods. They're all "attrition," in some form or another, which to a bean counter who tracks bodies going in vs. going out is only concerned with. That same bean counter needs to be able to see x coming in, y coming out, and z still in service 6 years from now. Then they can adjust x accordingly.
As for the squadron level (and maybe even Wing), I'm guessing no, "they" don't count it all as one category.