The FAA crackdown on mental health issues has been attributed to the GermanWings disaster. My guess is that a diabetic pilot is less likely to murder a planeload of passengers than a pilot who is nuts.
I watched the NTSB Safety Summit back in December. There was a flight attendant there who told the story of her husband, who was an airline transport pilot. Prior to Germanwings, he went as long as he could before he finally grounded himself to address his mental health issues. On his next medical application, he reported it, which triggered the deferral. The FAA would ask for this test, and that test, all through back and forth snail mail. They'd as for this, then they'd ask for that, and every hoop he was required to jump through he was doing it.
Then Germanwings happened. Shortly after, he received the thing he feared the most...a denial letter.
On the next flight that his flight attendant wife was assigned to, he went to a hotel room, brought his handgun with him, and shot himself.
The FAA I'm certain would use this to their advantage, citing "Yep, he was suicidal. Therefore, we were justified in denying him."
It's been said by many that the enforcement action which grounds a pilot, especially permanently, is enough to cause great depression in otherwise healthy pilots. For most all pilots, being a pilot is as much their identity as their birth name. You take that away from them, you take away their whole purpose in life. AAM-300 knows this. But they act as if this is not acceptable and is a mental disorder in itself, thus another reason to ground a pilot. Their draconian practices, not wanting people to understand the system, archaic regulations and standards, not trusting their own AMEs, establishing punitive consequences for incidents that happened well over 10 years ago (HIMS), they're creating this backlog. They are directly responsible for the pilot shortage. Don't think they're not. They will defend their stance with "If you can show that you're being treated and the treatment has shown to be effective, 100% chance you will get back in the cockpit." But then you hit them with "When? 3-4 years?" and they go "Well...we're backlogged and short staffed...".
They seem to have greater interest in keeping pilots grounded than flying. FAA = Friends Against Aviation
The Administrator once stated that the barriers that pilots face for being honest about their mental health are "perceived barriers". It was stated at the NTSB Safety Summit that "I hardly believe we would be gathered here today if these barriers were merely a perception." When you have more than 56% of pilots foregoing reporting their mental health information, you cannot argue that the barriers are "perceived".
Lastly, the FAA frowns upon autism of any kind. This is counterproductive because you have to be somewhere on the spectrum in order to fly a plane and do it safely like we do, with all of the simultaneous information processing required to do it (especially in instrument flying...all while having to ignore your own internal senses).