While I think there may be more to pull apart here, I think we're missing the necessary context to weigh in any deeper. How many assignments there are, what the assignments look like, whether they feel like just busy work, how much else is going on in the students life, etc. I think it would be telling (albeit not all that surprising as some are still just looking for a degree at that level) if they were using chatgpt on their doctorate, but even in that case I would perhaps argue that learning to use chatgpt tactfully or in ways which aren't the direct writing might be useful skills to have for future employment.