Well, I have no criticisms for the list. I am the exact demographic described, baby boomer college student, totally obsessed by music and the systems we were playing it on, comparing and competing over brands, specs, components, accessories, appearances, what ever metric you choose, we obsessed over it when it came to our stereos. Never mind competing about the most interesting current artist, or the recording quality, or sleeve and jacket design for those wonderful LP's.
The list reads for me like one of the best of the many themes of that generation at that time. I suspect that most of the alternative speaker suggestions although respected and heroic in their own rights, were never widely adopted with wild popularity as the systems mentioned. And in the end, that reflects influence. I owned and own some of these, and now my acquisition list has come into focus. At least in my daydreams.
I would love to see a similar list of stereo components or brands. The best of those 60's and 70's components and brands are quite popular these days on the Bay. Me, I'm a Marantz guy.