Humanities sorts are terrible at communicating with those who are not humanities sorts, just as most doctors and lawyers are terrible at communicating their specialties to the laymen. I am not talking about studying linguistics to the ends of getting a degree in it but in a more pragmatic sense, if you want to learn a bunch of languages than it is very useful to learn what all those languages have in common so you do not have to relearn the same thing in new contexts, you just learn the contexts.
>Language and music have a lot in common in that respect, it's perfectly possible to be proficient at either without having a very deep understanding of the theory as long as you are willing to put in the hours
They do but becoming proficient is different than success. Satie and Bukowski were proficient but not at all ignorant but plenty have success while being ignorant. It is that pragmatism thing again, what are your goals, learning music theory will probably not help much if you want to become a success in a popular music genera but it could be very useful if you want to become a success across genres. Where do you want to shift the ignorance and the knowledge? what will be of most use to your goals.