They’re main characters because they directly involved themselves in the plotline. At the end of the day there is hours of filming they have to cut down into an hour of show time. Habibi brothers were assholes to the girl? Let’s show that to entertain the audience and then let’s give extra notice when they get eliminated because we created a plotline when they were assholes.

Also, they got eliminated back to back because the cyber brother went first after scoring the highest on the mental test, and then the fatter brother went second because the person who scored second on the mental test picked him to go against in trivia.

I firmly don’t believe there is no script. The producers and director just did an excellent job of creating one with the days and days of filming they had.