Sure, but you have to treat the symptoms you actually care about. Lowering a fever doesn't make your nose less runny.

If amyloid plaques are just a symptom, then it's much less obvious that treating them will have positive effects on the symptoms you actually care about.

But symptom treatment is not good enough with this, as even removing the plaque, does not prevent-repair the damage. In this case, the symptoms would just shift to another set of symptoms

I'm no doctor, but I am curious if any research has been conducted on whether this treatment would be beneficial for preventing AD in people in "at-risk" populations. Perhaps it could be used to stop the plaques from forming to begin with.

I could see this treatment being something like exercise and diet for type-2 diabetes. Exercise and diet may help prevent diabetes, but neither will "cure" the condition once the point-of-no-return has been crossed. In other words, you can turn a cucumber into a pickle, but you can't turn a pickle back into a cucumber.