There where a lot of edge cases to those calculations. Including very short short commute times, specific locations within cities, background physical activity, traffic accidents etc.
Further, while 1% of cities may cross their air thresholds at their assumption levels those are the largest cities. So far more than 1% of the population would be worse off.
It's just the news glossed over the very real downsides mentioned in the study.
The benefits of cycling outweigh the harms of the pollution, almost everywhere. The pollution is still harmful, though, and lowers your lifespan compared to not having as much pollution.
Further, while 1% of cities may cross their air thresholds at their assumption levels those are the largest cities. So far more than 1% of the population would be worse off.
It's just the news glossed over the very real downsides mentioned in the study.