Early in my career I tried very hard to "be concrete, cold, and direct" because that's what I thought a good communicator would do. It was seen as attacking to anyone below me and confusing to anyone above me. I was naive and I suffered for it.

I definitely agree with what you're saying here where these words actually do mean something, but it's completely opaque to those outside the "know". I also have found that there's not any better way to express information to those in the group than in this coded language, even if it makes completely no sense to me.

I wish younger me understood that the way I'm being perceived is the only important thing, not choosing the "best" words to technically describe a situation

Schedule a meeting with the people you are directing it to then.

Blathering vague garbage execu-speak in a large meeting, even if it is some hare brained attempt to send "coded messages", is usually just some self-important charlatan bloviating and trying to sound intelligent and important to everybody else. And it is never effective communication.