I'd call that more of a design review than a cancelation. Obama tried to cancel the Constellation program, but because it provides a lot of jobs it was un-canceled and resurrected as the Artemis program. At that opportunity some changes were made: the Orion capsule got carried over, but the Ares V was downscaled to the SLS, but uses the same basic design; the lunar gateway was added and the landers were turned into a contract more like Commercial Resupply. But at it's core it's still the same "let's get to the moon on spare shuttle parts" concept, with many contracts simply carried over.
