With the addition of the "Remove Student Association" check box when deactivating a student, I believe it would make sense to add a "Cancel Incomplete Enrollments" checkbox or toggle.

The idea of having to go to the student transcript, find which training they didn't complete, go to the training setup page, and then have to cancel the students enrollment. All of these steps for just one of many possible trainings... It's a bit redundant and there should be a quicker way when deactivating/archiving a student in your system.