You only think all that because you're invested in Tannerman, now, perhaps you would also be so kind as to explain how, if your theory is true, did Gerry McCann state that on his check the window and shutters and curtains were closed if you believe the abductor opened the shutters and window before he picked the child up...or you can just leave it
Gerry didn't notice the shutters up. Would he have noticed a different light level, given he had undertaken no visual checks during the week?
MO didn't notice the shutters up, but he did notice the room was perhaps lighter than it should have been. Perhaps the clue there is that he saw the curtains as green & yellow, rather than blue & white, so consistent with the amber light shining through.
KM didn't notice the shutters up at first. I don't know if she had performed any visual checks during the week. It was only because of the curtains whooshing (and Madeleine missing) that she checked behind the curtains.
So 3 people failed to notice the shutters were up after 9.05pm - meaning they could have been opened at any time after that.