I've been puzzled and almost annoyed that my neuro did not recommend any change in diet (I took it on my own). We all know the reasons why: there has not been "scientific" proof yet that a specific diet will have a positive impact on a majority of MS patients. There have been many studies, many contradictions and doctors are still at a loss about what to tell their patients and therefore, they say nothing.
Maybe this new research is one baby step towards better mindshare and scientific based data for diet-driven adjustments and looking at what we put in our guts.
(some will argue that it's because of big pharma making Billions of dollar on MS treatments. My personal opinion is that during the acute phase of MS inflammation, DMD is needed to prevent damage and diet is just not enough. Long term, it might be different. This is just my opinion and is by no means medical advice.)