Forbes seems to have run out of American wing nuts to publish and are now using Australians.
Life is too short to spend time dissecting this sort of nonsense.
I will make one observation: "Equilibrium" is an abstract concept, like "goodness" or "evil". You can't point at it, but it is a useful tool for predicting or measuring for things you can point at.
Until economist like Keen come up with a viable replacement, I don't think they win any kudos for point out what are already well understood weaknesses in the structural assumptions in standard Micro Economic models.