The numbers are way too small over too short a duration to make any conclusion about mortality. The studies were just not powered for this. In the Pfizer study for example out of the 20000 placebo 150 or so got COVID vs say 10 or so vaccinated but overwhelmingly these were mild. Only 3 cases of severe covid in placebo out of the 160 or so. It’s not practical to power a study for a mortality endpoint Short of enrolling a couple million people in a RCT (not feasible) the best you can do is follow the real world data on N in the millions and this has been done. The argument you make is specious