During development of "The Angry Birds Movie 2", it was decided to break away from the original source material by having the birds and the pigs end their conflict and team up against a greater threat. This was done both in an effort to surprise audiences with a new experience involving the same characters, and as part of an attempt to outdo what was done in the first film thanks to the unprecedented level of freedom that the change made available to them. According to actor Josh Gad, the production team went forward with it not only because they thought the idea was "ingenious", but also because it would be most appropriate given the increasingly polarized political climate at the time, stating:


While not explicitly stated, it's speculated that this change in the story may have also been made in response to theories that its preceding film, "The Angry Birds Movie", contained thinly-veiled political and anti-immigration undertones as an allegory on the European refugee crisis, most notably with the portrayal of the pigs being unintentionally similar to Arab and Muslim terrorist stereotypes. However, it is not likely this was intended by the film's producers as the pigs were actually inspired by the 2009 swine flu epidemic during the original game's development, on top of there being antagonistic, invasive, and explosives-based elements in the pigs and their weaponry dating back to the first game that are crucial to the series' gameplay and story concept, albeit in a less developed state than they are shown in the film.