[satisfice]

I appreciate that you are looking at this with a charitable eye. There's a lot to be said for that. And yet, when someone words their heuristics in such absolute and categorical fashion, they stop sounding like heuristics and start sounding like moral ultimatums; which are anti-heuristic.

I, too, make lists of heuristics. And one way I test them is to ask "how could this be completely wrong? Is this really what I mean?" The common idea of negotiation is the process of coming to an agreement by each side being willing to give up something they want (at least in principle) in order to achieve something else they do want. It seems to me that collaboration involves a great deal of negotiation. So, is the OP talking about BAD negotiation? Then say so.