>>44586673Objectively: It's a video game mechanic, don't take it too seriously.
Autistically: The Magnemite we see in the anime and their relatives all pose MR and are using it constantly, a novice trainer ignores this and is surprised when his magnemite moves by rolling on the ground or with little jumps.
Doduo is a land bird, but in the face of danger it jumps so quickly and so high that it manages to avoid land attacks.
