It's commendable honesty about mistakes made.
Very rare and praiseworthy
Every European country had to make decisions under time pressure, but with very little information about a novel Coronavirus
As pp have said, the strategy had the support of most people in Sweden and has always been clear.
However, Sweden's deaths have plateaued instead of dropping rapidly as in most other Western or Central European countries.
Their economy is not doing so much better than others either, partly because their exports have been hit.
With the knowledge gained over the last few months, most European countries including Sweden, have learned more about how to limit infections and also treat the disease.
So most have adapted their strategy, as the science has developed
Most like e.g. Germany are now looking at clusters and cluster control, with immediate local lockdowns of new outbreaks - in care homes, meat plants, churches etc - before they spread,
but letting the rest of the country continue with more relaxed measures
Many virologists think most / all of Europe can avoid a 2nd wave,
but even if there is one, the strategy will probably be using targeted measures and more local lockdowns, rather than another full lockdown