Yes, the article (and most articles of the kind; from what I've read) don't take into considerations those dynamical and astrophysical features. They search for

Yes, the article (and most articles of the kind; from what I've read) don't take into considerations those dynamical and astrophysical features. They search for Earth-sized terrestrial planets in a zone where liquid water can exist on their surface ("habitable" zone). Nevertheless even determining the abundance of those planets is an ongoing problem.