Thank you for that question.
Clinicians on the ground are going to be drawing upon the work that has been done by the expert panel and the task group to help clarify how to use these terms in practice.
Even without that work, I am very comfortable saying that I don't think there are any psychiatrists, physicians or nurse practitioners who think that acute distress is the equivalent of a grievous and irremediable medical condition. We all understand that an incurable condition and an advanced stage of irremediable decline requires, as it currently does under track two for other chronic conditions, a long history of failed treatment and an inability to function in a way that gives the person an adequate quality of life.
As to your question about suicidality, suicidality is already part of MAID assessment right now. When people are in crisis, MAID assessments are either not done—if that's what the person is asking for—or they are put on hold so that the crisis can be attended to. It will be exactly the same thing when a person has a mental disorder as their sole condition.