Sure, this is a common sentiment, and one that works for some courses. But for others (introductory programming, say) I have a really hard time imagining an assignment that could not be one-shot by an LLM. What can someone with 2 weeks of Python experience do that an LLM couldn't? The other issue is that LLMs are, for now, periodically increasing in their capabilities, so it's anyone's guess whether this is actually a sustainable attitude on the scale of years.