Exactly!! The article doesn’t even get the paper right, but the paper doesn’t even talk about actual incidence rates within the non smoking population!
You're right on the graph. The graph in the article is very misleading, especially the N=4000 non-smokers.
If you look the table in the source paper, 53.4% of 296 Asian American Female (Single Group) lung-cancer patients are non-smokers.
Also, share of lung-cancer patients being non-smoker vs. smoker being higher in Asian american females, does not necessarily mean they're more likely to get lung-cancer. This assumes the non-smoking vs. smoking population is the same in teh general population, which it isn't.
It’s sad to see this kind of stuff published.