Yeah, Reader should have stuck around. But half of these I've either never heard of or only faintly remember. And the ones I do remember seem like reasonable axes.
Google Video, for example, seemed to serve the sole purpose of making me think "dammit, why doesn't the 'Video' tab just take me to YouTube?"
So Google's huge and had to cut off some redundant services over the years. So what. In view of privacy violations, military tech collaborations, and so on, EOL-ing a couple dozen services is hardly a cardinal sin.