If it's Abe's fault because he set the livestock free, it leaves little room for personal growth or development throughout the movie.
That needs to come in the sequel, following the happy ending with the destruction of Rupture Farms and freeing of the Mudokon Slaves, the Cartel now recognise Mudokon's as a liability and order a continent-wide execution of all Mudokon Slaves.
What seemed like a great ending in the first movie was actually a bad ending with horrific consequences with the hindsight of the second movie. Build up your hero, then knock him for 6 in the sequel. Story-telling, yo.
__________________
|