The “Restrict access after this date” function affects all students and auditors without individual exceptions. In reality, universities need to grant individual exceptions for Incomplete grades, grade challenges, or other special cases.
A Section Instructor could select all the students except the one who needs access and Deny access to them. Then the restrict flag could be lifted, allowing just this one student into the section.
Do students still see the section and get a difficult to understand error message when they are denied access?