Despite being part of the purpose, the people with an agenda are merely superficial. If one wanted, they could replace them to stay more in line with what are obviously meant to be the main points. Most of which aren't disputed by any real people to any major degree. Everything else can be changed by those inclined.
Either that, or people failed to realize I made a random picture, based on the ending of a game, and halfassed together explanations for it after the fact. Despite it more or less admitting that in the text. Still applies, though.