Is that so new? We used to complain when someone blindly copied and pasted from stack overflow. Before that, from experts-exchange.
Coding is still a skill acquisition that takes years. We need to stamp out the behavior of not understanding what they take from copilot, but the behavior is not new.
You're right, it isn't entirely new, but I think it's still different. You still had to figure out how that new code snippet applied to your code. Stack overflow wouldn't shape the code you're trying to slot in to fit your current code.
Coding is still a skill acquisition that takes years. We need to stamp out the behavior of not understanding what they take from copilot, but the behavior is not new.