A small oversight that was corrected with experience, but this seems to be a problem in a lot of RTS games. The numbers are misleading and make it easy to misunderstand which units are good against others. Starcraft II added a lot more information than the original Starcraft (thank God, when I was a kid I really misunderstood counters because I only looked at the system), but ultimately we're not suited to read these numbers very well when there are so many of them.
Command & Conquer was much different in that it only showed vague approximations and the player figured out the strength and weaknesses of units via general descriptions and experience. For one thing, I always felt that made the game feel a bit more real; but my real point is that all that information misleads us and retards the process of learning how it actually works through experience.
I think that strategy games, in general, should do away with most of the explicit numerical information; it's more misleading than informative.