My issue with PZ1 is that there is quantity, but it’s just a lot of the same animals over and over again. The current roster for an Amazon section is very poor, but I think that has more to do with the current limitations of PZ1 (and also some sort of cost benefit analysis when it comes to adding even basic ground dwelling birds, climbing animals, and habitat reptiles. While I’m not particularly stoked about the Bornean Elephant, I don’t think it replaced a potential bird. More like it was the “best option”. Or Frontier is saving birds for the sequel and bird people just have to use mod support)And sometimes, quantity is quality; you can't make a high-quality Amazonian pavilion if you axe the quantity of Amazonian species. You also can't make a high-quality petting zoo if you axe all the barnyard animals.
I’ve said this before, but what makes South America particularly struggle is that some of the animals the continent is most popular for have always had poor representation in Planet Zoo. Sure we got the large animals: jaguar, puma, llama, Rhea, tapir, capybara, caimans, ocelots, bush dogs, etc.
But the most common South American animals are the monkeys, birds, fish, and the many exhibit animals. Which have never had good representation in PZ. We only just got 2 birds and 2 NWM for the continent.