That is because the reality is that many folks, especially those in STEM, are really bad at communicating. It's the meme about the Marine not knowing how to spell or the NCO not being able to string two sentences together to write a proper PER, in a bigger level.
Decades ago, I asked someone who was in management in a blue-collar field why a seemingly low-level admin position which definitely could be an Apprenticeship needed a university degree. Their answer was "because I've seen too many folks who can't express themselves in writing." So no, the English Lit or whatever arts courses isn't because of woke brainwashing (like one or two courses would do that), it's because people need to learn how to communicate properly.
Another quote (I have no idea who said it) I've always kept in mind is "your communication is your clothing", as in that's generally your first impression on people.