L i N d $ @ y

Gave back what? Their memories? Yes, she gave them back.

I can also argue that the two charms are similar and not identical. To obliviate is to forcefully make a person forget. Modifying a memory is another thing. But I do agree that the spell mostly used was Obliviate even to modify memories so that's the confusing part because there should be two spells to differentiate the two.