Side bar: The very first time I ran that chain, I didn't know what would happen, I didn't have any Holy/Good weapons, and I still managed to get out of it alive, even before Part 2. I was in a group, and we were all new, at that chain, and none of us knew what was fixing to happen, but we still managed to get through it, and finish the optional for killing them. After we got the clubs, it was a bit easier.
Another side bar: No where did I claim the Silver Flame club was a good weapon, just that it was effective. I'm surprised I have to point it out to you, considering your mastery of reading, but there it is.
Yet another side bar: Against every other undead in the quest, Ghostbane would be effective. Again, however, using a unique mob in a p2p quest isn't really telling us what we need to know. In my first post that got you on this little tirade, I even asked where they were supposed to be having trouble with undead. I'm not sure why I should have to point that out to a master of reading, but again, there it is. Maybe it's just that you don't want people to think that Ghostbane is any good for anything? Maybe w/out that supposition being supported your position falls flat on it's face? I mean, seriously, you are coming off like you're the penultimate authority, so anything that brings that into question must be bad, right?