I can't say for sure why this animation style used here, but the way it's reminiscent of Beavis and Butthead and King of the Hill creates a disjointed feeling when you realize this is a dark and somber story of toxic masculinity, repressed homosexuality and abuse. To me, it worked perfectly, transporting me back to my childhood with its style. It reminded me of a time when society more accepted that type of behavior and a time I was subjected to it more.