A Navy captain was demoted
A demotion to most military folks means just that. If you were a Captain, you no longer are. I see no evidence of demotion, anywhere in the article. She lost command of a ship. A demotion ought to be in order, but would take different action than the IG report could accomplish, although the report could be evidence in the case against her, should demotion be sought by the Navy.
You don’t have a clue how things work in the Navy. Her career is over. She doesn’t loose rank, just the job. Now she’s warehoused doing some BS do nothing job until she retires with O6 retirement pay as long as she breaths.