The group of editors are not just currently engaged in a content dispute - they are edit-warring, being incivil, and making personal attacks, despite being warned by several editors and administrators. Yet, this biassed administrator didn't block them or even look into their policy violations. If he voluntarily involves himself in this case, he should have gathered all the facts - he clearly didn't, and should not have overruled the original decision, or involved himself in this case to begin with.