I agree, they must consider her deceased to have spent so much pursuing this particular line of enquiry and in the heart of Luz too.
I'm writing an article on my cadaver dog, Gonçalo, for my blog. I wanted a photo of Tito and Muzzy, and Google came up with this thread.
Check the earlier link, as it has some excellent photos of the search in Luz.
The question raised here is why did they scour this part of central Luz.
Based on what I know so far, it's about Smithman. That sighting was very close by.
It became one OG focus by the Oct 2013 Crimewatch.
At least 2 of the 4 people made arguidos in July 2014 lived nearby. Please note - nearby has little meaning in Luz, unless you live on one of the extremities. If not, everything in Luz is nearby.
One person in mind is Paulo Ribeiro, who was interviewed on Panorama's 10th anniversary special. He had been identified from a drawing or efit, presumably from Crimewatch. He lived very close to both the Smithman sighting and the site OG searched. There may be other suspicions, perhaps the alleged phone calls in the run up to Madeleine's disappearance. Like the other arguidos of that time, he seems to have been told he is no longer of interest.
If OG shuts down, so there is no longer an active investigation, I will go off and check with this gentleman what was really going on. Until then, it is up to OG.