I agree with you about discarding "pseudo-impressive business style techno-babble", Little Hawk. However, that is easier said than done.

For various reasone (which ought to be looked into), many people find that words don't flow naturally once they start writing for an audience. This could be something akin to stage fright in a musician.

For another thing, it doesn't do to write in a clear, practical manner if your boss mistakenly believes that this proves you are a rube.

By the way, I got the idea about using concrete language for the Chinese clients after I read a long detective story by a Japanese author. I closed the book and realized that there had been only one abstract concept in the entire novel - one paragraph on loneliness. And loneliness isn't that abstract, as concepts go.