The issue isn't with TMDSAS, it is that the vast majority of TX undergrad institutions are refusing to allow students to invoke AFS, citing a variety of reasons.
The typical scenario involves registrar's offices not understanding the law, and believing that one who already has a degree is barred from applying under AFS. In the recent past, Richland College and HCC were the two schools allowing students with degrees to invoke AFS without issue, but Richland College changed their stance a few years ago, so it seems like HCC may be the only school allowing degree-holders to exercise their right to AFS.
What
@esob is saying is that undergrad institutions are violating students' right under Texas law to invoke AFS, and it might be helpful if some of us who've navigated the process successfully inform legislators how the law helped us, while also explaining the issue of school staff being uneducated on how the law works, thus preventing many candidates from exercising their right.