But there were' lots of little blonde girls, all in pink', according to Jezz's partner . Why Madeleine ?
Because she was left unattended.
IMO
Madeleine was targetted.
1) Too many witnesses noticed the man watching 5A and its comings and goings for that to be untrue.
2) I also have a niggling wonder if 5A was specially allocated to the Mccann family because no-one else ever went past the windows or door on the northern side.
3) It was very dark there and surprise, surprise the porch light was broken.
4) There was a convenient car park for the getaway car very close but around two corners - so anyone seeing the getaway car being driven towards the 5A car park could not be seen by the same person.
Therefore, no visual connection. Hidden in plain sight.
5) Also, a viewer on the the balcony to the flats opposite could see anyone approaching both the front door and the back door.
6) He could also see straight into 5A. His balcony lined up perfectly whether the top one, or the middle one. He could actually see Gerry moving around in there. He could see him leaving as well as arriving.
It is my belief that a watcher on this balcony opposite gave the go ahead for Tannerman to go in as he saw Gerry leaving.
What the watcher did not know was that Gerry had met Jez and they were chatting nearby.
So was 5A allocated to the special target, Madeleine, because of the abductors advantages outlined above ?