That was an awesome read.
And I guess I can see how it is a bit obtuse, but in all fairness to the authors of the article they gave quite decent summaries of concepts. I saw explanations on the basic race differences, global overview of tactics (mess with resources aka gas-steal/worker-kills, hit-and-run, etc), basic uses and effects of different units (tanks, mutalisks, archons, templars) and in the end, I think that's about as much as one might expect.
After all, in an article discussing Deep Blue's tactics, would you expect to see indepth explanations of the way a horse jumps and how it works with other units? Far less so than that a discussion on how to set up proper two-pronged attacks over the course of several moves which is more AI. Likewise, you wouldn't expect to see the details of castling or promoting explained, if it came up at all in the article.
Summary: great article.
If anyone else has gotten slightly curious about Starcraft but not necessarily from a playing perspective, hit up youtube. And do not worry about the graphics of SC1 you see in the article: with Starcraft 2 having been released watching videos is ten times the fun as it drags the game into this age once more. It's a bigger sport than one might expect at first glance, and there's a fair number of people casting games from crap to the highest professional tiers while discussing their tactics and all that.
Personally I find it far more entertaining than soccer, baseball and the sorts. So, if anyone is interested, let me know and I'll collect a bunch of links to good casters.