As well, mental illness is not just a state of mind. Sure, there are stories where a failed suicide attempt was the catalyst for someone finally being able to reach out for help, there are also the stories where people have been reaching out for help forever, and help's just not coming. Where they can't afford the medication, or no medication seems to work, or they have an addiction problem and there just isn't any way for them to get into a treatment program, etc.
Not to mention the stories where their attempt left them powerfully sick and/or disabled. We're talking near-miss fatalities here -- recovery from those is rarely painless, quick, or complete.
This isn't a case of medical professionals and program officials just not caring. These eligibility criteria are very carefully considered. In fact, they're SO carefully considered that they've delayed eligibility for MAID due solely to mental illness THREE TIMES to ensure proper safeguards are in place. Currently, it's pushed back to 2027, so we're not even talking about anything that is even a present-day concern.