I also don't understand this.
Iran is bad, but If the outcome was known in advance, why even try.
As per Marine Traffic AIS recordings, yes at least ONE US Destroyer went into the Gulf ..
View attachment 241715
Note:
1- US Military rarely squawks for obvious reasons
2- Spoofing location, especially your own, is trivial.
Most reports I've seen said the did turn. They sent a message, Iran responded said turn in 30 minutes or we shoot.
Possible one of the two went ahead, possible the abrupt southward turn shown is where at least one went back?
We'll never know