It is an interesting detail, but I guess taht most most people will still refer to it colloquially as Nobel prize.

I think that point about the nature of the price doesn't diminish the point that was being made. As much as it is a call to authority, weight of opinion of someone rewarded with that price is bigger than random voice on the internet.

That being said I think this thread starting with unsubstantiated criticism of Paul Krugman ideas/opinions is not constructive and rather useless.