Come on. Polio had a mortality rate of 5.5% and a paralysis rate over 25%. Not close
You read that article wrong. <1% of the people infected had some form of paralysis.
Poliovirus infections can lead to a spectrum of clinical presentations ranging from subclinical infection to paralysis and death. Ninety to ninety-five per cent of all poliovirus infections are asymptomatic. Paralytic poliomyelitis occurs in less than 1% of all infections. The disease is traditionally classified into spinal, bulbar and bulbospinal types, depending on the site of the affected motor neurons.
Of those with paralysis,
The mortality rate for acute paralytic polio ranges from 5–15%.
Assuming the <1% is all acute, which I don't think it is, but that would represent the upper limit. Anyway, that would mean 5%-15% of <1% or 0.05% to 0.15%. Then factor in that Covid is more contagious and that is why Covid is worse.