Not surprisingly, people bitched.
The Simpsons is storyboarded at Film Roman, a company based in California. The storyboards, voice tracks and coloring instructions are then sent to AKOM, a company in Seoul, South Korea. According to Nelson Shin, the founder of AKOM, they received the storyboard for the sequence in August 2010. Believing the sequence to be "excessive and offending" he pushed for some of the darker jokes to be removed. He was successful, though "not nearly as much as he had pushed for." For example, in the storyboards, the workers were wearing conical Asian hats, but these were removed.
Banksy told The Guardian that his opening sequence was influenced by The Simpsons long-running use of animation studios in Seoul, South Korea. The newspaper also reported that the creation of the sequence "is said to have been one of the most closely guarded secrets in US television – comparable to the concealment of Banksy's own identity."
BBC News reported that "According to [Banksy], his storyboard led to delays, disputes over broadcast standards and a threatened walk out by the animation department." However, Al Jean disputed this, saying " [The animation department] didn't walk out. Obviously they didn't. We've depicted the conditions in a fanciful light before." Commenting on hiring Banksy to create the titles, Jean joked, "This is what you get when you outsource." Although conceding to the fact that The Simpsons is largely animated in South Korea, Jean went on to state that the scenes shown in titles are "very fanciful, far-fetched. None of the things he depicts are true. That statement should be self-evident, but I will emphatically state it."[