To be fair, the 0.26% you quote was an estimate only based on incomplete data and they also stipulated that it was based of fast changing information and was subject to change.
The 0.26% is within the expected mortality range, but it's on the low end. We're not going to know what it actually is for quite some time. It could be spot on, it could be lower, it could be higher. At this point, the only thing that we know about it is that it's much more likely to critically affect those with certain medical conditions or who are over a certain age.
For a better write up see:
https://www.usatoday.com/story/news...stimates-covid-19-death-rate-0-26/5269331002/