Because the virus isn't coming back in Sweden, whereas its neighbours are already experiencing a second wave. Sweden's argument was always that it was "front-loading" the infections, so over the long-term other countries would see a similar number of infections as they experienced multiple waves.

That doesn't appear to be what's happening.

https://ourworldindata.org/coronavirus-data-explorer?zoomToS...

Also, Sweden didn't avoid an uptick in domestic violence.

https://webcache.googleusercontent.com/search?q=cache:iuGdja...