>>56541520considering its habitat in chargestone cave and ability levitate i think the point is that it "swims" in the air by levitating with electromagnetism (or some sciencey handwave bullshit), i think not having the water type works in its favor since it furthers the idea that this is not your normal marine life
that said don't ask me why the fuck they made eelektross's sprite stand like that and said it crawls out of the ocean in its dex entry