It's an important and worthy topic - honestly, more people should be aware of what these conversations are like, both so they can express their wishes to their loved ones in advance, and because it would probably lead to interesting reflections on what one wants out of life.
However I feel the execution of this short film leaves too much out. We're not told much about the preceding circumstances of any of the patients, some of whom only get about 45 seconds of screen time. What happened to the patient who was 38 and just became a grandma? She seemed pretty "with it" but was being put on a long term ventilator - why?
That said, it was instructive to see how the doctors debate these decisions. A lot of people will probably second guess some of the doctors (especially the curly haired white woman), but I actually feel better seeing that it's a bit of a committee rather than just one doctor. And there honestly isn't one right answer, which is why it's a debate.