Zoos like the San Diego wildlife park (it's separate from the older San Diego Zoo, and outside the city a little) are good this way: they have lots of room for the animals to roam and it's more like their natural habitats.
Also, with some animals, keeping them in zoos in the best place for them because they wouldn't survive in the wild. Many zoos have permanently injured birds, for instance, that can't fly any more, and there's also albino animals (like white tigers) that can't live in the wild.
Some zoos also undertake conservation efforts such as captive breeding and reintroduction. [0] is just one example. I hope bills like this don't swing the pendulum too far and end up hindering conservation.
I think that captive breeding with the goal of reintroduction would fall under the welfare and best interest or scientific research clauses introduced and amended by the legislation.
While I really love the Toronto zoo, watching their lynx pace back and forth in the cage, digging a path into the ground, that really impacted my impression of zoos generally. Perhaps large[0] cats like that don't belong in small enclosures.
[0]Lynx are actually much smaller than I expected, and bobcats even smaller than that. Still, they need a large space to thrive.
I've seen a lynx (mountain lion) close-up too, and they're not small. They're the height of a medium size dog, but far more muscular. They can easily take down a human, and have been known to kill humans (usually women) when very hungry and too close to civilization. Of course, they're not the size of a Siberian tiger; those things are huge.
As for needing a large space to thrive: that would be nice, but they can't really live in the wild in most places any more because stupid humans will kill them. This is the whole reason deer are so overpopulated in many places in the US; lynxes are their normal predators.
There’s an aviary that does exactly this in Salt Lake City with bald eagles, vultures, flamingos, owls, and others. It’s worth a visit if in the area. https://tracyaviary.org/
Most if not all captive raptors have some kind of illness. Interestingly, sometimes it's actually a mental illness. The most common example I know of is being imprinted on humans rather than their own species. These birds simply wouldn't survive in the wild. In fact, they won't even survive in captivity if kept in the same enclosure as another member of their own species.
Also, with some animals, keeping them in zoos in the best place for them because they wouldn't survive in the wild. Many zoos have permanently injured birds, for instance, that can't fly any more, and there's also albino animals (like white tigers) that can't live in the wild.