Based on NYC mortality figures as a lower bound, I also thought the rate must be in that neighborhood.

But there were influential dissenters, e.g. the infamous Stanford study a few weeks ago estimating nearly 3% infected in Santa Clara County, or the Swedish authorities’ conviction that 25-30% of the population in Stockholm is infected.

This study seems to provide pretty strong evidence that those estimates were too high... not that I expect it to change anyone’s mind at this point.