But that email was introductory, rather than the one actually seeking input. (Which, as I've said before, regardless I think it was fine to express at that point and at any point.

That second sentence ought to sound great, but you keep putting it in less-than-encouraging context. "I'm not saying you can't give input! Just that we weren't asking for it, and keep in mind that this is someone else's job, not yours." I really hope that doesn't reflect the attitudes of people in the workgroup.

I appreciate your response on the second point, and your feelings about professional conduct.