Ways to present LDL-C and statins benefits vary widely, the graph in the article present statins and reduction of LDL-C as a god send.

However some very large study show a seemingly different story, eg:

https://pmc.ncbi.nlm.nih.gov/articles/PMC9798292/

"Association between low-density lipoprotein cholesterol and cardiovascular mortality in statin non-users: a prospective cohort study in 14.9 million Korean adults"

Figure 1 shows a hazard ratio higher for both lower LDL-C and higher LDL-C level, with a large flat part of the curve in between.

Curious if someone has an explanation