I did a double major in Theatre and English Literature in university, and then went on to spend a couple of decades coding and working in tech.
I learned an immense amount of deeply technical matters in theatre. I had to learn basic engineering, the physics of sound and light, electronics and much, much more. I used to be able to calculate lighting power loads in my head.
And yes, we spent classes learning to communicate with only gibberish, or without speaking at all. We did silly trust exercises and re-learned basic movement, speech, vocalisation and other skills.
But the single most important thing I learned—a skill I still use every single day—is how to put my fucking ego and even my dignity aside and focus on joining my efforts with those of others in order to create something that is bigger than anyone's individual contribution.
The number of entitled, holier-than-thou shitheads who think they don't owe it to the world to actually live in it is way too high in tech. If your entire self-image can't survive a few hours a week actually learning to communicate, then I feel genuinely sorry for you.
I'm not sentimental, and most of the left's touchy-feely, sharing-caring emotional virtue signaling sends me to the exits quicker than fire in a match factory. But these particular exercises provide you with tangible, useful, reusable skills that you can apply to any collaborative project, and the people who pooh-pooh these things are the ones who are most lacking in them.