It's not about how infectious it is, but how severe. Early reports said that 90% or more [1] people develop symptoms and that the average death rate is 3.5% (with some outlets even suggesting 10%...).
If we divide those estimates by 10 we're getting 9% of symptoms and 0.35% lethality. While I won't argue for 80 as being the number that's almost 2 degrees of magnitude. That would mean that 0.9% people have symptoms and 0.035% has severe case. This is on par of 2009 Flu pandemic and 3 times more than regular seasonal flu.
Now, I have no idea how reputable source is or how trustworthy this exact article is but that's one of the perspectives that were present since almost the beginning of pandemics.
Note: Since I don't really gather articles those might be low quality republishes
[1]: https://www.msn.com/en-us/health/medical/covid-19-symptoms-t... [2]: https://www.theblaze.com/news/german-study-shows-coronavirus...