The question is he being obedient to God? Hey may say he stands for the right thing, which he might, but we're also taught how to go about doing it.
His downfall isn't that he is being direct and bold -- that's something we should all do -- and we shouldn't pander to those who disagree "Well, it's your life so it's OK and God probably understands." His downfall is his diversion from the Gospel to strictly focusing on individuals who are sinning and not leading to any real conclusion except out of anger.
Sin gets all of us angry when we know it is objectively wrong and we see it, but we're not supposed to lose our heads and insult because we can't control our tempers.
Sometimes things need to be blasted double-barrel, and sometimes tables need to be flipped. But this is not what this guy was doing. He took his own person annoyances and masked it as preaching.
Well said!