For some students, exam anxiety makes it impossible to get an accurate reading on what those students know and can do...so it is inappropriate to make an evaluation on the basis of an inaccurate assessment, and it is incumbent upon the teacher to come up with an alternative assessment strategy for such students.
Good illustration of principle that assessments should not contain racist, sexist, ableist assumptions, and so on. Test developers need to be mindful of the hidden curriculum and ensure their tests assess the students' understanding of official curricular content without requiring them to share the instructors' biases and preconceptions.
This answer provides diagnostic information: this student is relying on memorization instead of understanding, to pass tests; this requires you to change instruction to deemphasize rote memorization and testing and choose assessment strategies that encourage learning
