At least those could be dismissed with almost zero effort. "You clearly didn't spend any effort in your report, so I'm not going to spend a lot of effort replyi

At least those could be dismissed with almost zero effort. "You clearly didn't spend any effort in your report, so I'm not going to spend a lot of effort replying". But with this it at least looks like they spent the effort, and even though you can suspect LLM chicanery, you can never be entirely sure, especially not from the initial message.