As were the 'real' police when they arrived on the scene and went about checking the eye witness testimony out instead of rubbishing it all in damaging leaks to the Portuguese press.
Paulo Rebelo opens the window to Maddie's bedroom
Paulo Rebelo and his team consisting of two homicide inspectors, one from sexual abuse, another experienced in robberies and two specialists in technical analysis went over apartment 5A and reconstituted every possible scenario including entering via a window and passing a child sized bundle through.
So it seems the window does indeed have a place in the narrative ... but only to an investigation team competent enough to spend the time checking out each and every feasible scenario.
The window certainly did have a place in the narrative, a place that Rebelo and his competent investigative team wanted clarified in the reconstitution.
‘2 - The situation concerning the window to the bedroom where Madeleine slept, together with the twins, which was open, according to Kate. It seemed then necessary to clarify if there was a draught, since movement of the curtains and pressure under the bedroom door are mentioned, which, eventually, could be verified through the reconstitution’.
Why would Rebelo need clarification if he was convinced of the veracity of the parents statements ?