I believe the sentiment was more: I understand that you may have a bad day/week/month and do poorly on a project, but don't sweat it. If you really do know yo

I believe the sentiment was more: I understand that you may have a bad day/week/month and do poorly on a project, but don't sweat it. If you really do know your stuff you can still prove it on the exams. I think it is fair and better than purely weighted grades because it allows for momentary failure while still requiring knowledge of the material.