It would be helpful if all CSUs with campus or major impaction would do that.
It does look like CSUN also lists past frosh EI and transfer GPA thresholds: https://www.csun.edu/admissions-records/impaction
Interestingly, SDSU shows transfer GPA thresholds but not frosh EI thresholds: https://admissions.sdsu.edu/transfers/apply/gpa_requirements