The author is missing an important point: dietary sources of cholesterol are from animal byproducts only.

> Cholesterol comes from two sources. Your liver makes all the cholesterol you need. The remainder of the cholesterol in your body comes from foods derived from animals. For example, meat, poultry and full-fat dairy products all contain cholesterol, called dietary cholesterol.

> Those same foods are high in saturated and trans fats.

from the American Heart Association: https://www.heart.org/en/health-topics/cholesterol/about-cho...