These are US numbers, though. Norway, e.g., has tested like crazy and diagnosed 4% of its population with covid throughout the pandemic. Given that the US numbers for covid cases are at least three times higher, the risk assessment will necessarily be different.

The Scandinavian solution will likely be to just delay vaccination for a week while a dose of the Pfeizer vaccine is tracked down. The change of contracting covid in that timeframe is very small.

These ethical considerations are necessarily local.

That 4% will only go up over time. Per the article they’re only stopping a select demographic for Pfizer.

My point is it won't go up much during the small delay when the small percentage of as-yet unvaccinated young men simply take the other vaccine instead.

As with transmissibility, the virulence is not constant over time.

Not to mention as time goes by, many other things are de-risked such as literally our understanding of vaccine side effects and proper mitigations, and new therapies.