Haven't read the article yet but this is the first time I've heard of a claim that Sweden's been handling this well from a health and safety POV.
It's been pointed out that Sweden has more COVID-19 deaths than nearby Norway, Finland and Denmark. You can see they are way worse in COVID-19 deaths per 1 million at https://www.worldometers.info/coronavirus/
than those countries, if you sort by that. Right now on that metric it's:
For kicks, here are those numbers for some of its other nearby countries:
Since South Korea and Taiwan were mentioned, those numbers are 5 and 0.3. Singapore was doing well, until it wasn't recently. They're at 3.