I've seen this pattern a few times now: someone encounters NVC - claims that his interpersonal skills have massively increased - starts trying to recruit others into it - others don't follow because he's mostly talking in canned robotic phrases - when others point it out to him, he uses NVC tools to ignore/deflect - all efforts to reach him fail. In contrast, I've never seen anyone who could be described as an NVC su…
This was my impression after reading the NVC book. It doesn't aim at resolving conflict. It aims at being able to talk about a conflict without joining into it. Most conflicts have a rhetorical side to them, and when you try to talk through them, you almost inevitably fall into the trap of fighting the conflict on the rhetorical level. Even an intermediator trying to be neutral will end up reciting one side's attack…
The reason is that by default the rhetoric and content, (as you've put it) are deeply conflated in the minds of the people who are engaged in conflict. NVC can tease them apart, and often the content that is left is literally nothing (ie. it was all just a matter of feeling respected or whatever), or a trivial disagreement that can be quickly solved.
But even when the conflict turns out to be non trivial, NVC is a boon. If all parties to the conflict are now in a non violent frame, then what has happened is the problem is quite clear, the stakes for everyone involved are quite clear, and all the people are in a collaboration together to figure out a solution that addresses what matters.
So you're right that it doesn't automatically solve any specific, objective problem, but it sets up the environment so success becomes way more likely.