Yeah, I don't think the teacher was concerned with the complexity of the game, but more in WotC providing an affordable entry level product. It wouldn't have to be a box set - a single book covering four classes (C, F, R, W), four races, and enough monsters to provide five levels of content (or six or nine or whatever) would work just as well. The rules may indeed be more basic in the interest of conserving space and keeping page count down, but I would be all for a good beginner's set.
Pathfinder did a great job with their basic set, though at $35 (better deals online) it still may be a little to high for a tight budget. However, it was LOADED with stuff - you could probably offer a more streamlined product for $20 and be in the right ballpark.