The world might have "recovered", but tens of millions of people did not, and one can be certain it was never "erased from the human mind" since it is the primary citation when people think of pandemics. Global fatalities from a pandemic resulting from an infectious virus have a way of doing that to people's memories.The world recovered from the 1918 Spanish flu epidemic, without a cure for it ever being found.
Since we live in a much more crowded world, with infectious diseases having the potential to spread all over it in a matter of days, the experts keep telling us to stamp out diseases like this, ASAP. Having some expertise in the pandemic myself, agreeing with the pros in virology and epidemiology is very simple - minimize spread, and actively work to eliminate the threat . No other approach is rational.
Sadly, this is becoming a redundant series of posts. Suffice it to say that most intelligent people are treating it for what it is, a deadly virus, with significant morbidity. They are doing what they can to prevent its spread, and hoping that one or more of the many vaccine candidates will control, if not eliminate it. And also hope that it doesn't return.