I actually really like the inclusion of the giant otter, just because it looks so diffrent from the otter ones. I feel that they are the perfect pick to represent otters, as long as we get another one, which is tbh quite likely. I would bet they didnt want to blow all their punches on the aquatic dlc and picked the less marketable otter to give us one of the cute ones in the future. Because lets be honest, the aquatic pack would have selled great even if it were just the penguin lmao
But yeah ofcourse i can oviously absolutly understand anyone who would dump them for their preferred small otter of choice. They really just are a niche animal