Pikachu exists like Magmar, and I would say is in the same camp as Golbat where a Baby was added later so the pokemons design stands on its own.

Pre-evo baby pokemon generally do not count towards these because half of everyone forgets them (other than pichu) - they tend to just be Dex filler you forget exists in a box in the games. I don’t think they even print baby pokemon in the cards anymore because how non-necessary they are