Applied correctly, I can see it being useful in modeling machine learning algorithms. More data points are almost always a good thing there.

If simply dumped in front of school teachers and administrators, I suspect it would be harmful. The data will simply reinforce biases those people already have about certain students.

Interestingly, the data could be turned around on the teachers as well. A teacher may be so effective that students can pass courses without reading the material. Administrators might not recognize the astounding ability of the teacher and instead interpret it as a teacher handing out easy As.