Don’t be too hasty.
These samples of moon dust were collected from a fairly small area.
The moon is much denser on one side as compared to the other.
I have considered this to be evidence for the Giant Impact event as a glancing blow that preserved a large portion of the impacting object that formed nucleus of the moon.
This nucleus may be much older than the post impact part of the moon.
The denser part of the moon would because of gravitational attraction be the part of the moon that would be tidally locked to Earth.
The Earth facing part of the moon is where the moon landings took place so that the astronauts could remain in contact with Earth.
Until the study looks at samples from the far side of the moon I think they should refrain from making revisions to the age of the moon.
You missed the sarcasm tag. (Which was written in invisible ink.) It’s interesting, but not world shattering. Oh, wait, it was world shattering. 4.46 billion, give or take a billion, years.