[qludes]

Because part of the homework could be implementing algorithms and data structures. Even if that's done in pseudocode you'd probably want to expose your students to some form of VCS at that point. At my old faculty for example you worked through 1/3 of CLRS as part of the lecture and then implemented a few algorithms and data structures in both Java and C++ under the guidance of TAs.

So even students who failed the programming part and passed by acing the exam and the theoretic part knew what a shell was, what a compiler and linker did, how to find documentation and how to actually do all that on either their laptop or a provided thin client.

And most classes were set up like this. As a first semster student you'd be submitting your MIPS assembler homework using a VCS etc.