What is with this? I thought Google announced in the past that sites serving different content to its crawlers than real members would have those results remove

What is with this? I thought Google announced in the past that sites serving different content to its crawlers than real members would have those results removed from their index. Is this some ridiculous loophole whereby it's ok if the link works with a google referrer but not directly? So stupid. If the link is not truly open, it should not appear in search results, simple as that.