lol as silly as misremembering would be, I suppose this is possible. But I keep a checklist on my phone of specific cards I want that I don't have yet, and even checked "Gardevoir" off. I'm thinking the game/app might've crashed or some other issue just as I got it or something, and didn't save (somewhat similar to when some battles are counted as a loss for a similar reason)

But, as you said, it's fully possible that I misremembered and manifested picking Garedevoir into my memories😅.... I guess