pixie
A//// superspreader is good, if it does little damage. Immunises people, and the more that catch it, the less it needs to mutate./////
I am also confused as I thought it was the opposite.
The more the virus spreads, the greater chance of mutation either to a less dangerous strain or a more dangerous one.
Yes, it would be counter productive to kill its host, but in doing so the host would be off work, then in hospital , the in ITU and then dead. That takes time , damages the economy and puts a strain on health resources.
I may well be wrong in criticizing your evaluation and interpretation.