15% of deaths happened in the past 24 hours, that's not a flattening of the curve
Maybe you're being fooled by the lack of reported deaths in the weekends in Sweden? It does mess up the curve quite a bit. But it's been like that every weekend if you look at daily deaths. And it makes the log graph look less exponential than it is
Also the log graph is a day behind the reported numbers, so tomorrow you'll see a sharp rise as they're at 1200 deaths now, making it clear that it's indeed exponential