FAFSA Question

Recently decided to pursue my MS in Business Analytics for Spring 2026 and just got my acceptance letter (last I checked I still have a pulse, yay me). I just submitted my FAFSA letter for the 2025- 2026 academic year successfully and it’s “under review”, also saying I’m eligible for about $7800 of Pell grant. Since it’s after June 30th (federal deadline), why’d it let me submit it?