That's basically the paradox of evidence based medicine, and there's plenty of published criticism on the subject. Naturally, we haven't measured the effect of decades of Long Covid yet. Yet, we can have strong and logical suspicions that the effect is potentially much more severe than a few weeks ICU (although they probably correlate strongly). I am personally in favor of acknowledging the trap of evidence based medicine, and taking 'softer' risks into account, even without evidence. In retrospective, there are plenty of things for which some sounded early alarms, but only when the evidence was in was policy adjusted. I think we can do better.