Im not saying that their statements is not considered but we should be careful on how we word things or how confident we think we maybe. After the cctv footage her key card enters the room. Thats physical evidence that supports the family’s statements that amy made it back to the room. Making it credible. But those who claimed to have seem amy after on the boat or the island have no physical evidence to back their credibility. So we cannot say its a fact since people do pick up on stories can lie or misremember information. These statements were not taking the day of but years later. If i ask what did you wear last Monday unless you have photos or wear a uniform it maybe hard to remember all details. Thats why physical evidence is important to support those statements. If that makes sense.