Reread the article.
During the 25 years, there were 2,900 deaths in the study group. Of those deaths, 109 were directly attributable to COPD, and nearly all those deaths were in people who were active smokers at the start of the study. Only two non-smokers died of COPD.
So, out of 8000 people, 107 smokers and 2 non-smokers died DIRECTLY of COPD, over a period of 25 years.
That's one in every 800 that died directly of COPD. Not bad. One-eighth of one percent. I wonder if that's even statistically significant?
Thanks for the ping!