Expanding need-blind isn't the same as overall expansion.

Many universities have adopted need-blind admissions (not including donor admits), eliminated or reduced student loans, and/or expanded undergraduate admissions - all efforts that support economic diversity.

Stanford (for example) implemented need-blind for domestic student admissions (but still not international), and largely eliminated (or at least reduced) undergraduate student loans. Undergraduate class size seems to have expanded from ~6500 (?) in 1983 to ~7500 today, and may continue to expand slightly:

https://news.stanford.edu/stories/2025/04/president-levins-r...

However, it's worth noting that Stanford acceptance was above 25% for the class of 1979 (vs. 3.6% for the class of 2029.) Application growth has drastically outpaced admissions and class growth.

https://irds.stanford.edu/data-findings/undergraduate-admiss...

Additionally, administrations have generally expanded much faster than the undergraduate student population.