The OP is a teacher seeing their student's abilities in formulating their reasoning less well than before. It's reasonable to think that getting an assignment

The OP is a teacher seeing their student's abilities in formulating their reasoning less well than before. It's reasonable to think that getting an assignment done for you and simply reviewing it, is less likely to educate, than actually forcing them to do the work. Basically, the hypothesis is that assignments are a Chinese box assuming the ability to produce (and validate) a good response imply knowledge and ability. That's an interesting take.