The “authorities” were very concerned seven years ago and did pretty much nothing. All psychiatric evaluations will do is create a bunch of false positives; tell a bunch of psychiatrists/psychologists to find problem pilots and they will go and find them for you. Doesn’t matter if they are the risky ones; Something Will Have Been Done. And the at risk pilots will be wise enough to *gasp* hide their problems.
The problem is rare enough that the governments/regulators/airlines/management can afford the occasional worldwide suicide/hull loss versus the worldwide cost of doing something effective about it. Key word being effective.
So anticipate some ineffective, not thought through responses that will be quietly dropped in the future at some point.