This isn't really a 'taste test' it's more an ad for these companies or it's their description about their product. Put up a real comparison after really putting each of these breads to the test, not just taking their word for it. There are a couple on this list we ALL know shouldn't be that gave it away.
Not be negative but would it really matter to know if we've been glutened or not? If we knew, there's not much we can do about it after the fact. Gluten ingestion vs food poisoning - we're still throwing up.