The brochure isn't lying to you. It's answering a different question.
The brochure answers: what is on this ship? You're asking: will this specific week, on this specific hull, at this specific price, be a good holiday for the people I'm travelling with? Those aren't the same question, and no amount of photography closes the gap. What closes it is a small set of numbers that are all published and almost never presented in a way that invites comparison — tonnage per guest, the date of the last drydock, the gap between the fare and the total, what sits on the deck directly above your cabin. That's what this archive is: the research behind the channel, organised so you can actually use it.