> They are explicitly the inverse of DEI approaches.
This is essentially a No True Scotsman fallacy. If it's DEI, it's bad so any good approach is, by definition, not part of DEI.
> DEI is predicated on outcome diversity, rather than treating applicants equally irrespective of background.
The first part of this is incorrect. Good DEI is about creating a level playing field (as you correctly point out for blind people or wheelchair users). Obviously, this isn't possible in all cases: I think everyone agrees we wouldn't want a blind taxi driver.
> The entire premise is that certain groups require special support
This is correct. Fair criticism of DEI initiatives can be levied at those which don't do this effectively and instead shortcut by using, say, hiring quotas. I've said multiple times that things like this are lazy and stupid because they don't address the lack of opportunity for disadvantaged backgrounds.
> and have been historically excluded because of bias (sometimes true, often wholly false
This is an inaccurate stating of the situation. Some groups (e.g. black people in the USA) are excluded due to bias. Some have been excluded due to situational factors (young white men in the UK have worse outcomes due to poverty). Good DEI initiatives attempt to counter these, with varying levels of success.
Let me take the article as an example. They identified an advantage for people on CTI programmes, which also happened to turn out good ATC operators. This may have advantaged people who could afford to attend the programmes, which could have skewed white male. A good DEI initiative might have been to put the work into outreach in under-represented areas to get more people of colour into CTI programmes. Instead, the FAA banned CTI programmes, threw the students there to the wolves, and seemed to sneak in a test designed to hit hiring quotas. Not only was this discriminatory, it also actively reduced the number of qualified ATC operators.
Nowhere in this scenarios did I need to fall back on "DEI bad," because I tried to discuss the specific issues within the article.