Are you a frequent user of LLMs? That "copy pasting whole blocks" mental model doesn't hold up to regular usage, in my opinion.

They probably saw that report years ago of copilot dumping out the fast inverse sqrt function, and assume that's all they can do. From experience most anti-LLM people have either never used them, or used them back in the 3.5-4 era and then never again, though you might have even more experience with those people than I do. :P