The whole academic section is short enough to quote it all:
Previous studies at Cornell and elsewhere have found that SAT scores are significant predictors of first-year GPAs.
The vast majority of students who have matriculated at Cornell—with or without known test scores—have performed well here. However, those who were admitted without test scores tended to have somewhat weaker semester GPAs, were more likely to fall out of “good academic standing,”7
7To maintain good academic standing, a student must successfully complete at least 12 academic credits and have a GPA of at least 2.0 each semester.
and were less likely to re-enroll semester after semester. These patterns hold true holding constant students’ high school GPAs as well as other personal and high school attributes.
There is no evidence that these differences have diminished across cohorts of matriculants; the gap in first semester GPA has remained consistent for all three years of new admits.
The association with GPA may be attenuating somewhat as students accumulate more semesters of experience at the university. That is, is the gap is smaller in the third semester than it is after the first semester. This is encouraging for those students who have persisted, but the robust evidence of increased rates of academic struggle and attrition remains a concern.
The analyses of outcomes are consistent in suggesting that when admissions officers have test scores available to them as additional information in a holistic admissions process, they are able to use them in a way that supports positive outcomes for Cornell students.
Personally, I’d say that is not really a major departure from the findings of previous studies. I’d also say, like another poster implied, that they didn’t really give us enough details about their controls and the results of their controlled analysis to assess issues like whether or not scores are as relevant for every different type of applicant (which was not the case given the more detailed information released by Dartmouth, as with them it depended on things like student SES and high school resource levels).