Jargon is great when it is used, as you have said, as a "...commonly used communication shortcut
The two key words here are commonly and shortcut. Common implies all or most will understand. And shortcut, in that it concentrates the focus, and shortens the discussion. All great.
Alas, many want to impress, and to sound current. I remember the first time I heard a business person tell the group they wanted to "reboot" a project. I suspect that has been a problem with communication for ages, and will continue.
To all of you who strive simply want to communicate, and not impress, I salute you.
And now, I have a SNAFU to attend to!
The more you are prepared, the less you need it.