I could say the same regarding Formosan black bears or Malayan bears yet they got deep swimming fairly early. Just because any real zoos out there haven't done it doesn't mean we have to limit our creativity, in a game that is all about being creative
Well, you are not wrong. I also think they over did it a bit with the bears, to be honest.
While I agree, it is a shame to limit creative freedom, there are still stuff that should be prioritized over others. And here I think it is more logical to focus on the things that feels more essential, before we go with the "nice to have" kinda things.
To me it would make more sense to spend that time on making some enrichment items usable by more species, as an example.
Since I would imagine that would fall under the same department.