I'd seen this study, so has Dr. Zivadinov, and his response is below....looks like the researchers are trying to prove that CCSVI is not the primary mechanism for iron deposition---that an immune reaction does the same thing.
But the animal model used is not relapsing remitting...it's another ADEM model, or that of encephalitis, which is not MS.
Here is Dr. Zivadinov on this paper:
Whether iron deposition is an epiphenomenon of the multiple sclerosis (MS) disease process or may play a primary role in triggering inflammation and disease development remains unclear at this time, and should be studied at the early stages of disease pathogenesis. However, it is difficult to study the relationship between iron deposition and inflammation in early MS due to the delay between the onset of symptoms and diagnosis, and the poor availability of tissue specimens. In a recent article published in BMC Neuroscience, Williams et al. investigated the relationship between inflammation and iron deposition using an original animal model labeled as "cerebral experimental autoimmune encephalomyelitis", which develops CNS perivascular iron deposits. However, the relative contribution of iron deposition vs. inflammation in the pathogenesis and progression of MS remains unknown. Further studies should establish the association between inflammation, reduced blood flow, iron deposition, microglia activation and neurodegeneration. Creating a representative animal model that can study independently such relationship will be the key factor in this endeavor.
This animal model just isn't MS.
A potential critique of the model  is that focally increased concentrations of TNF-α and IFN-γ in the brain occurring at the same time as the development of an autoimmune myelin epitope response may not plausibly occur spontaneously; however, the modification of the immune response clearly has led to a model of focal iron deposition in the brain in the context of inflammation.
Here's the full Zivadinov response:
Let's see how those Stanford marmoset brains look after losing their jugular veins for awhile....