By that do you mean you believe Alf's no theory theory?
He has yet to state how the abductor got in apart from it could have been through a window the front door or the patio doors and the Portuguese cops were so dim they did not see the evidence of break abduction etc that was before their very eyes.
He will have to do better than that to convince the man on the street, your snide comments not withstanding.
The theory is like Euclidean geometry!
I have never been the least bit minded to have my intelligence insulted by idiotic theories crushed by the weight of evidence to the contrary.
Each one more desperate than the last; but each one believed as if it were holy writ; I'm not sure if smuggling the child into the old woman's coffin was the pièce de résistance or the juggling between the back of the couch, the garden and the parents' bedroom.
You pays your money and you makes your choice.
Alfred's theory has the benefit of being realistic, believable and most important of all ... workable.