I get the impression that it sets a tone that encourages creative, more open ended responses.

I think this is the reverse of confrontation with the LLM. Typically if you get a really dumb response, it is better to hang up the conversation and completely start over than it is to tell the LLM why it is wrong. Once you start arguing, they start getting stupider and respond with even faultier logic as they try to appease you.

I suppose it makes sense if the training involves alternate models of discourse resembling two educated people in a forum with shared intellectual curiosity and a common goal, or two people having a ridiculous internet argument.