The body isn't rosewood. You couldn't afford a Gibson Les Paul made entirely of rosewood.
The fingerboard is rosewood, which has been the lumber of choice for that function since Christ was a corporal, be it on a Gibson, Fender, Ibanez, Rickenbacker, Danelectro, or my own Mosrite.
Gibson wanted their lumber back from Uncle Sam, because Rosewood from Brazil and India, as well as Ebony from Madagascar and India, are "Banned from Import" items causing much pain under the (eerily retroactive) Lacey Act.
That means they have to find alternate sources for those two expensive varieties of wood for their guitars, boosting prices even higher. They also had to crawl through their own sphincters to prove that all the lumber in question wasn't harvested illegally.
It was much cheaper to pay the fine than pay for an extended trial. They paid for that rosewood (twice!) and by gawd they should use it, even in a commemorative Les Paul edition.
They didn't screw up. They chose which battle to fight, and which one to avoid.
Bravo to Gibson for best use of the old "When life gives you lemons, make lemonade" adage!