I looked at a website that seemed legit.
That may be what they’re referring to: “eligible noncitizen, as determined by the student’s postsecondary institution”
But the full reference is here:
https://www.floridastudentfinancialaidsg.org/SAPBFMAIN/SAPBFMAIN
I saw that eligibility can change after each legislative session.
I agree OP should apply by August 31.