That's not reasonable. 1% risk of death vs (1+4.6)% risk of death (a) is closer to 1 order of magnitude higher (log_10(5.6)=0.75), and (b) 1%/year and 5.6%/year

That's not reasonable. 1% risk of death vs (1+4.6)% risk of death (a) is closer to 1 order of magnitude higher (log_10(5.6)=0.75), and (b) 1%/year and 5.6%/year are nowhere near the same the way most normal people think about the risk of dying. A 1 order of magnitude lower risk (0.1%) is basically negligible, like a regular flu. On the other hand, a 1 order of magnitude increase, i.e., around 10% risk of dying would already rate among the deadliest epidemics in history, and far above things like the Spanish flu, so comparing orders of magnitude is just not the right way to think about this number.