I think it's hard to argue that the system hasn't got out of control.
My dd is currently awaiting an adhd diagnosis. She went to talk to the disability team at her uni about some specific challenges that she was experiencing... nothing to do with exams as the time pressure in exams actually helps her to function better than usual, and this is not an area of difficulty for her.
We were both surprised that she was offered extra time in the exams... without a diagnosis and without having raised any concerns about her ability to actually manage the exams within the standard time frame. While I can't fault the university for bending over backwards to help, it would have been much too easy for dd to get extra time that she didn't need if she had wanted to give herself an unfair advantage. She declined the offer, but others in a similar situation might well have accepted it.
If we're going to make it so easy for people to get extra time, perhaps we need to loosen up on the time pressured nature of exams for everyone in order to make things fair while still being inclusive.