Yes, I think so. I think the criteria in the Canadian and the Dutch law can apply to the kind of patient you described.
I do think there's consensus. There are studies being performed that show a relatively high acceptance of psychiatric MAID in the Netherlands and also abroad. I also think that, because of the polarized debate in the Netherlands, we have a silent majority which, in essence, is supportive of a restrictive option of psychiatric MAID.
I agree with most of your statements. I would argue that mercy is more important than the right to self-determination in the current Dutch system. Self-determination autonomy is necessary, but insufficient as a criterion. It's especially important in psychiatry, for psychiatric suffering, to also maintain the criteria of irremediability and unbearableness.