I think with Gaunab it's that PUGs can actually beat the guy reliably (Although I've recently seen some shouts for him saying to use phasers...really?). I actually don't have an Ogier's Helm myself and I would love to get one, but I also hate wasting my time. It's the same reason I don't join PUG Botulus. If they fixed the difficulty or made the reward per difficulty more sensible then I think you could fix the problem without even adding what the OP suggested.

Not to say what the OP suggested would be a bad thing that is.