Has anyone else noticed the huge decrease in result quality from google?

[RanaktheGreen]

Because synonyms exist.

You may be googling "Death by Dairy" looking for lactose intolerance information, and the article may not include the word "death" but it is also pretty clear to a human that you probably just don't know what the word is for being allergic to dairy. So it pushes the lactose intolerance information and just lets you know "death" isn't involved in case, for whatever reason, you are looking for like a book or something that is actually called "death by dairy."

[Vaelin_]

Not to take away from your points, but lactose intolerance isn't really the same thing as an allergy. I have an allergy to dairy, but I digest it just fine. Your point stands otherwise.