When courses reside in a curriculum they have a default status of Enroll until a student/employee actually starts the curriculum or courses within it. The problem is the Learned Progress report will display empty cells for a student/employee who has yet to Start their curriculum and any courses within the curriculum also will show empty cells on the Learner Progress report that they have not started. The result is the Admin or Manager of the student/employee has no idea of what the each student/employee still needs to Complete for their required and/or mandatory training based on the reported data of the Learner Progress report..
As a workaround, you can use Post Enrollment rules to enroll the user in each course when enrolled in the curriculum. Not ideal obviously, but we have had to use it a few times.
Agree, this would be very helpful for reporting.