I like the animal theme because it serves as a way to disconnect the messages from the possible prejudice that might be generated from a human actor. For example, a play with an all-white-cis-male cast might not resonate the same way for various audience members. By making the characters into animals, it adds as an additional blinder to remove the actor from the character.
What I didn't like
The casting of the “alpha predators” arc of the play could have been better. We get it: that message was aimed at the right-wing political complex – but having two white males playing against women and minorities was just way too obvious. Since this didn’t use puppets or makeup, the race and gender of the actors was obvious.
My overall impression
1) It was a fable: a story with animals as substitutes for humans, which has message(s) to tell.
2) It uses animals to explore philosophical themes regarding nature and our purpose for living.