Google hasn't been a functional search engine in about a decade.
Perhaps by your very narrow definition. But it's vastly better than it was at finding what people are looking for, which is what they always wanted, regardless of terminology.
However, it's *not* as good at "keyword regexp bingo" as it used to be. But if you're still trying to use those old-style queries, you're doing it wrong. Try typing complete natural language questions for what you want to find. I find this works amazingly well, even on obscure technical topics which include lots of "keywords" which are heavily overloaded in other contexts.