While I agree with these fine principles, it's worthwhile to realise that they have only limited applicability in daily life for a simple reason: they are time-consuming. Hence they are difficult to apply when time is scarce or when little is to be gained from the outcome of a disagreement. A resource-intensive strategy like the one outlined is most appropriate in high-stakes disagreement.
The scarce time and little to gain arguments are persuasive to me. I've also encountered many personalities who react negatively to frank disagreement. If there's little to gain, maybe the best solution is not to disagree. If time is scarce, but the issues is critical, maybe agreeing faster can work. Personally I'm working be less frank and bring these principles into more daily use.
