Orwell believed if language is pared down, so too are thoughts.
> The hypothesis of linguistic relativity, also known as the Sapir–Whorf hypothesis /səˌpɪər ˈwɔːrf/, the Whorf hypothesis, or Whorfianism, is a principle suggesting that the structure of a language affects its speakers' worldview or cognition, and thus people's perceptions are relative to their spoken language.
> Linguistic determinism is the concept that language and its structures limit and determine human knowledge or thought, as well as thought processes such as categorization, memory, and perception.
Think of it like this: if we made English even less regular would it make us better and freer thinkers? Of course not! It would probably make it harder to think clearly. A good example is how counting is hard to learn because the words are weirdband illogical. It's like converting between roman and Arabic numerals.
Much of art is about transcending limits, and often those limits are intentionally imposed. (See Oulipo)
It's the specifics and precision that seem hard to convey. For example, it's hard to talk about physics because the number system is deliberately anemic and power, force, and strength are all the same word. (wawa)
If you wanted to be precise you'd have to build specific concepts using a lot of semantic primes and it ends up being even more wordy than xkcd's Up Goer Five: https://xkcd.com/1133/