That would be more reasonable if we ever saw the Hunter cheerleaders ever take on Romney or Giuliani. But they don't, or at least, only do so seldom. They're gunning specifically for Thompson, over and over.
It’s politics.
In being in the HOR Duncan has been able to maintain at least more purity in his conservatism. Still doesn’t push the lever for him, but it explains why Duncan fans are so harsh on FDT, he doesn’t let him stick out as much anymore as the most conservative in the race.