Stupidity: Lily dying at the end seems poetic but it would obviously cause legal trouble for Lucas and Annabel. The court/CPS would still be checking in on the girls, making sure that Lucas and Annabel were responsible guardians. There's no possible way that they could explain the disappearance of Lily. Victoria would certainly be removed from their care and there would be legal action against them, as negligent caregivers. (01:30:00 - 01:40:00)
Suggested correction: Except, of course, if Lily's body is found and her death is determined to be a tragic accident.
Her body can't be found though, because when she died, her body ceased to exist and all that was left was a butterfly.
Stupidity: They say the airline industry was the perfect way to transmit the virus but how would the plane even fly if there was an infected person. In one scene the plane crashed within a minute of an infected person being on it.
