First of all, while Alzheimer's is the leading cause of dementia, it isn't the only one. I really hate it when people conflate them in all cases due to family experience here.
Second, I was mistaken thinking that Myelin isn't in the brain, but only outside of the CNS. It is. My bad.
Wiki article.
Third, while breakdown of Myelin in the brain is listed on the wiki page for Alzheimer's disease, that is not even close to the
leading hypothesis. To me it feels like a stretch to say this has application here, especially because the original article and application has to do with resetting an auto-immune problem (MS & allergies) which this isn't linked to. The Myelin breakdown hypothesis for Alzheimer's isn't linked to auto-immune at all, thus, I don't think it's applicable.