I wouldn't reply to someone's email and accuse them of "low-effort sales" or whatever. I'd just say "thanks, not interested" and then be internally mad at the low effort.
From the other side, I think that sales should be aware that these emails can read like "hey, we're going to shut you off unless you chat with me for 30 minutes" which is annoying. It would be nice to clarify that up front, to avoid the negative emotion associated with that prospect.