Try telling that to the powers that be here rhino man.you are correct but as mentioned this species has been badly managed and then there is the problem of a ultra strict IRA process on top nothing here is simple when it comes to importing animals into this region . Look how long the bovine IRA has taken.
I think the hippo IRA is more likely to happen sooner rather than later now multiple zoos have a vested interest in it going through. Monarto Zoo are looking to source hippos (likely a breeding herd) and Werribee need to source a new bull to ensure their young cows have a chance to breed.