The major cost drivers of Canada's single payer health care system are big-ticket tests and interventions: MRIs, surgery, etc. Palliative care is comparatively cheap, especially since it's often done at home with a visiting nurse coming by to inject morphine. There's no significant savings to be found by killing the terminally ill more quickly.

MAID is always a choice by a patient, not an option chosen by the health care system. And according to reports, in 96% of cases it's a really obvious choice: I'm going to die within a year anyway, in great, degenerative agony. I'd rather go of my own choosing while I still can choose, in a relatively painless way.