> "The Sharks also have absolutely no idea what is going happen with each company that comes on"
Right. They don't know what's going to happen when they talk to the company. That doesn't mean they don't know anything about the company beforehand.
> "They haven't even seen the pre-roll that the audience sees"
Maybe so, but that doesn't mean they haven't looked over business plans, executive summaries, founder resumes, etc. first. Audience pre-roll would be useless to these judges. Pre-roll is probably created after the judge interview, anyway.