Neil already covered this well, but again, the owls are a solitary species. Even if a place is breeding the species, they're usually kept alone most of the time.
Exactly, you have no idea what their plan is, so why are you telling them what to do? You don't seem to know much about how zoos work in general.
They didn't choose not to breed polar bears, or keep the species. Polar bears are really struggling in captivity and rarely breed; there's been 0-2 births for quite a few years now. Old bears are dying, and there's none to replace with them. You can't force animals to breed.