No, because she DOES lay blue/green eggs. That is all it takes to be an Easter Egger.
I see "Easter Egger" used for any chicken that lays blue or green eggs, no matter whether they got the blue egg gene from an Ameraucana, or a Cream Legbar, or any other breed or mix. (Evidence: the frequently-repeated statement that an Easter Egger can have any feather color and any other traits, as long as she lays blue or green eggs. It gets repeated over and over in threads about "Americanas" that are not Ameraucanas.)