Well, I think the reason they don't do that, and focused on the benchmark game (which I think is a good solution to their problem of needing representative samp

Well, I think the reason they don't do that, and focused on the benchmark game (which I think is a good solution to their problem of needing representative sample, it just comes with its own caveats), is because much of that is often handled by libraries (possible written in C), code in the Interpreter or VM (also possibly written in C), or handled by the OS (in the case of connection handling and file access). Those are useful things to know, but don't inherently speak to the features of the language itself.