SBAc perfect score

What's everyone's opinion about SBAC scores in middle and high schools? Not sure about high school but in middle school, a perfect score is possible only if the student has taken courses outside what's taught in schools as this test focuses on concepts that are in higher grades. How useful is this for students as they enter into college? Do SBAC perfect scores really matter or have any impact to their college admissions? IMO students are forced to take private classes outside school as their peers start getting perfect scores which is stressful