That test was not an OOB.
Again, that text was not an order of battle. It made no statement of details of who, where from or to where.
If anything, the announcement by the Pentagon of the three carrier groups moving into the middle east two weeks earlier was closer to an OOB that what existed in that text.
And OOB is a detailed list of the command structure and units involved in a military engagement. The Pentagon announcing the movement of three carrier groups to the middle east to deal with the Houthi Threat is still not an OOB, but it is closer to an OOB than that text. That text is in no way an OOB.
Another problem with your argument is that the level of OOB release like the Pentagon has done happens all the time, and it is done mainly to strike the fear of God or Allah in the enemy, because there is pretty much no military on the planet that can do anything with a US OOB, all that the OOB could possibly impart on the enemy is a rough estimate of how truly ****ed they are.
In modern warfare, "three US carrier groups" equates to "absolutely ****ed".
Pete Hegseth as Sec Def has delegated classification authority from the President. He has the power to declassify within his department. The president can rescind that, or declare that the Sec Def exceeded his authority, but he didn't do that.
This was a spillage of sensitive, but not highly classified information. It wasn't intentional and it had no actionable material that could have been used by America's enemies, except to tell them how much time they had to get right with Allah, unless you are ready to classify Jeffrey Goldberg as an enemy of the United States, and it didn't impact the mission.
But again, the Houthi best by date was stamped the moment that the Pentagon made that "three US carrier groups" announcement.
It wasn't an OOB, and there are times where releasing war plans, even to the enemy, is a sound and winning strategy.
A good case in point: Operation Garbo in WWII
In the hours before the D-Day landing Allied Intelligence released the Normandy landing details through a spy, codenamed Garbo, to the German high command.
They did this knowing that the information would not adversely impact the Normandy landing immediately and giving the Germans this information would solidify the German high command's trust in Garbo. Having gained their trust, Garbo then, for the next week, started feeding the Germans false alerts that a bigger, main invasion force was heading to Calais, which had the effect of freezing 3 Panzer divisions and 30,000 German troops in Calais, saving the Normandy landing.
So see? Your last statement was grossly over simplified, and your understanding of what constitutes an OOB is absurdly wrong.