It's the history -- rise and fall -- of an entire civilization. To echo the beaver from The Lion, The Witch, and The Wardrobe (a fantasy story that, along with Lord of the Rings, also has what you would probably consider a lot "going on"), "It's the world dear, did you expect it to be small?" The problem with the Council is their dithering. In a society that has eroded free will and choice, they are incapable of making decisions. It's not about belief. People know or believe a lot of things in life, like how eating healthy and exercising can extend one's life, but people can be reluctant to change or stall in making decisions. This version of the Superman mythology is exploring these themes and doing so in a relatively new way, and that's okay. YMMV.