Comment by EpicEng

So anyone can use any language for any assigent. How many runtimes do I need to install to grade your program? Howany languages do I need to know? How many frameworks do I need to understand? It's a problem of practicality.

I agree that any CS course focused on a tech stack instead of CS concepts is a poor one, but that's not the only reason we see specific languages being mandated.