Glad it helped! There is one more wrinkle in this debate: scientists are still sharply divided about the role of amyloid. Traditionally, amyloid was considered a cause of Alzheimers but today there are many who argue that amyloid is merely a side effect of Alzheimers (even though amyloid accumulation definitely precedes memory loss).
I don’t know which side is right, but this drug is premised on the traditional idea that amyloid causes Alzheimers. Thus, it’s easy to understand why scientists in the latter group are railing against the FDA.