Statistics presented there doesn't necessary show healthcare system performance. Life expectancy will be dependent on a lot of other things, like population genetics/diet/lifestyle.

Also, regarding healthcare system quality, one of related statistics from this article are in favor of US: "30-day mortality for heart attacks and strokes is lower in the U.S. than in comparable countries". Same with ischemic stroke(and it's better in US by quiet much, 4.1 vs 6.1 30-day mortality rate per 100 patients in other countries).