From all I'm told, that's pretty much standard operating procedure, especially that brand, might even be on the low side of costs. Just remember, that's only one instance that they got caught, most times they'd have swapped engines and installed a reman and away they went, nobody the wiser, with enough time, they'd have pulled the engine, sent it to one of their rebuild centers and waited, got it back and installed it, the customer never seeing anything or knowing any different. Pumps, finals, transmissions, torque converters, all the same way, but cheer up, it then comes with a warranty, which is a perk worth something...............right??
John is right though, they all do it.