More like submerged vs not submerged moving. I'm sure you understand since you made the game.
Don't worry about it, I'm sure it's fine leaving it as it is. It's more for if you ever decide to remake it or polish it more. I know some people like doing a post-jam update based on feedback as a nice way to conclude the jam.
You did an excellent job. I would have done opposite controls, which would have felt wrong to the other group of people