But then, is that necessarily a bad thing?
In most cases where language is being used as a vehicle for exchanging ideas, isn't some degree of uniformity actually desirable for clarity? I personally wouldn't want instruction manuals to be full of colorful or highly individualized language, for instance.
That's not to say linguistic diversity is meaningless, but I would argue that this particular concern is fairly specialized and matters much more in literature and other creative forms of writing.
PG's 'learning a word' ~= 'learning an idea' comes to mind
"is that necessarily a bad thing?"
Yes.
The value of the diversity is not just aesthetic.
Human laguage is rich and expressive, matching human thought. The diversity is part of the expressiveness. Saying something in some poetic, or merely different way, is not just an inefficient or ambiguous/confusing way of saying the same thing, it's saying something else, and that something else cannot be expressed any other way.
A crayons-only, thumbs-only, Apple one-button-only, 1000 word vocabulary world is not efficient, it's poor.
This makes is sound like everything except a narrow slice of “creative forms” should be subject to a giant efficiency optimization. I’ve never noticed instruction manuals to be hard to understand because of colorful language, so I don’t believe we need to optimize further in that regard. Why stop with language? Shouldn’t every personality outside of “creative forms” be more standardized? Sure I want to laugh at comedians, but wouldn’t it be more efficient for us to work together if everyone had a totally fungible personality?
Engineers often reduce human interaction and creativity down to computer analogs like “exchanging data,” treat work and business as life’s raison d’etre and then we wonder why every car on the road is monochrome and we’re on the umpteenth Gardian of the Avangers film.
Eh, not hard to notice some people indeed started to write like LLMs too. Not completely but hints are there.
I think it was the Uplift series by David Brin that has an idea where the old galactic races all speak a perfect language that has no ambiguity, and because of that they have no poetry or jokes. What a great world to strive for. No I'll take the mess please FFS.
People joke about engineer types treating humans the same as machines, but really I see no excuse for even engineer types to get this wrong. It's a failure to recognize what the function or goal actually is, and then optimizing for the wrong thing.
Linguistic diversity has been used as a casus belli, at least indirectly. It’s something that populations will take up arms for, so it’s probably worth tiptoeing around.