I think that this could be the cause of some of the hypersensitivities to stimuli that people with severe ME experience, such as not being able to bear even light touch. The nerves that enter the dorsal root ganglia are sending information from the periphery to the brain and this messag could well be affected by inflammation at these ganglia.
In my view there is evidence of other abnormalities. These would include impaired production of energy at a cellular level, issues with getting oxygen to the tissues, due to problems with circulation and/or extracting oxygen from the blood. For at least some autoimmunity plays a part.