I have seen several MS patients posting about gluten free helping. (for example on a yahoo ldn group)
I have seen some other threads about MS and gluten before, and many years ago they did suspect a connection.
But then medicines for MS appeared and steroids, and doctors focused on that.

And, consider, that the villi of celiacs will turn normal if they keep eating gluten and take steroids.
(All traces of gluten intolerance have been eradicated because MS patients often take steroids so researchers do not see the connection....)