The claim here is more of an opinion than a fact when only taking the link they sourced into consideration. If you click the link, it takes you to the University of Oregon housing page. When reading the page, the housing department says, "Studies show that first-year full-time students living on campus have higher GPAs, stay in school in higher numbers, and graduate faster." But there is no sources or articles linked to back up this claim. Therefore, I looked deeper into this and started searching the internet. I found that multiple universities including University of Oregon, West Texas A&M University, Cal Poly Pomona, and many more like to state that there have been studies done that show living on campus improves your gpa, improves attendance, and can lead to a faster graduation. None of these universities show where they found this information or give the name of the studies that proved these points. Although, there was a study done by the National center for education statistics, called the National Post Secondary Student Aid Study. This Study is done every 3-4 years and has proved that "the type of residence during college does not have a significant effect on 1st-year academic performance." as stated by Ruth N. Lopez Turley, and Geoffrey Wodtke, the authors of "College Residence and Academic Performance: Who Benefits from Living on Campus?". This shows that the requirement to live on campus your first year of college is not necessarily true that it is in the best interest of your grades, but probably more so the interest in your savings.
Links to sources I found my Information from:
Live-On Requirement | University Housing -UofO housing
(PDF) College Residence and Academic Performance: Who Benefits From Living on Campus? -Research Gate article by Ruth N. Lopez Turley and Geoffrey Wodtke
National Postsecondary Student Aid Study - Overview -Study where the research gate article got their information
Freshmen Requirement -Cal Poly Pomona freshman living requirements