Solving most conflicts isn't even as hard. It all starts with changing the tone.

Feyrplay tone: "we decided that this is what's going to happen. If you do not comply, you will get GBed"
My tone: "What happened? Ah I see, so there are two sides to the story (there usually ARE 2 sides). So, what do you propose would be the best solution?"

Feyrplay does not want input or a fair trial, they just want to powerplay and show how big their e-EXPLICATIVEs are.