I also think that if he had abducted her, it would have been a very odd thing to do. He was on a cruise ship with no way off, it was likely that within a very short of time there would possible be a large hunt for her - she’s a young white American woman travelling with her family. Her disappearance would be and indeed was noticed very quickly. She doesn’t fit any sort of normal risk profile for a trafficking victim. So he would have had to abduct and hide her knowing it’s entirely possible they would search the ship. He would then need to be confident in his ability to get her off the ship, when potentially it was going to be locked down by law enforcement. It is immensely risky, when there are much easier ways of getting human trafficking victims.
Turns out the initial response was lacking, but there was no way for him to know that in advance, so it’s a hell of a risk to take when there are so many easier ways.
I think it’s a actually more likely that he killed her due to being turned down or something that any human trafficking stuff, but I do really believe that the father waking up suddenly due to ‘something’ was Amy falling off the ship. Perhaps she made a cry, a shout, the sudden movement caused him to wake from dozing, something made him wake up, and she was gone. She had slip-on shoes IIRC, that she would almost certainly have worn if she was going to leave the cabin. She obv took her cigarettes with her and I believe she changed her shirt when she got back to the cabin, so would she then leave the cabin to go somewhere else on the ship without wearing shoes? It seems unlikely. But being barefoot on balcony wouldn’t be unusual.
If you look at pics of the actual cabin, not the reconstruction footage, I wouldn’t say that the railing was high either. If you had got onto the table or a chair to puke over (her brother said she wasn’t feeling well, so perhaps she wanted fresh air and to not wake up parents in the cabin), it would be very possible to tip over IMO. The railings are much shorter than on modern cruise ships.
This has been a really long-running discussion on unsolved mysteries subreddits etc, so a lot of the stuff in the documentary has been discussed pretty heavily up till now. There’s some good Reddit threads on it that break a lot of stuff down.