Another common slur.
It's so silly! Once the harpies show up, the threads go to Queen of Heaven and Inquisition and Trent and blah, blah, blah.
I wouldn't have thought that "one trick pony" could refer to a group with more than one theme over which to argue, but the argument is always the same, only the terms change.
Tra la.
LOL. Do you know NOTHING of history?