I don't think that listing some example tools is a problem. Especially for the audience of a primer like this, a categorized vocabulary list like this can be in

I don't think that listing some example tools is a problem. Especially for the audience of a primer like this, a categorized vocabulary list like this can be indispensable for giving people a quick lay of the land and a preview of some names they'll encounter. My complaint would be that, "Tools listed/shown here are for illustration only: no endorsement implied," should have been inline instead of buried in a footnote.