The real problem with hunts; impact on the community.

[Kisshu]

My experience in FFXI proves the logic of that statement to be the opposite.

I remember Fafnir fights where a WHM from competing LS would stand behind the HNM and spam Cure IV on the main tank to force a Tail Swipe so the claim party died and the competing LS could grab it. When they created the /aid function where you couldn't receive outside help to eliminate the WHM strategy the compening LS' would all gather at the claim party, spamming abilities and bard songs in an attempt to lag and disconnect the claim party. And then all the other tactics for other HNMs.
If we had the "only claim party would get points" again we would see the same problems even though the NMs have much shorter spawn time simply because of the reward, we already see provoke reset being used by some parties.