Late to the thread but:
If they entered last year's coursework it's not really their fault. Yeah, it sucks you could have gotten a higher mark if they'd submitted a more recent one however they still submitted one.
It could be seen as partly your fault as well as you did the work, if your school didn't let you have another chance that's the one they would have had to submit (we didn't get to redo any CAs) It's your work, your grade, you just have to accept responsibility for it.
It's not the school's fault you didn't do well enough in a CA