Yes, but presumably (1) that harm affects everybody put on ventilators and (2) those who are now put on ventilators are the most desperate cases, so better vent

Yes, but presumably (1) that harm affects everybody put on ventilators and (2) those who are now put on ventilators are the most desperate cases, so better ventilator triage as such does not seem to explain the improvement in ventilated death rates to me (even though it may explain improvement in overall death rates).