...
This will mean that whatever score the user gets, even if their score is 0% or 12% etc., they will be able to move on.
Their Quiz will be marked as complete and they will be able to access any content that can be unlocked by the completion of the Quiz.
...
The admin will be able to mark the user's Quiz as complete, even if the user has failed.
This means that the admin will still know that this particular user has failed the Quiz, and this will be recorded in the reporting, but that the user can now progress.
...