no you are wrong there ............G A ....didn't have to blacken there name they did that all by themselves
you seem to except things very easily regarding the mccs ...
to even think that anyone reading the book would be brain washed into stop looking for maddie...or not report any info they had ... 
.the people reading the book i would say were doubters anyway...but can make up there own minds....
after all ....the only thing usually published is...abduction ...abduction sightings ....suspects ...etc etc....
and as for G A being an embarrassment ....what would you call below....a pic of maddie two and a half...and if you didn't know different you would think it was a lottery cheque ..they were holding up ......
http://3.bp.blogspot.com/_lWXrpwC28yU/SyS0o5iTePI/AAAAAAAAHKU/X6PbCmsGNdQ/s1600/Gerry+McCann,+Kate+McCann+and+Brian+Ashton.jpg
Tell me how their name was blackened to the extent of being accused of knowing someone was lying about knowing where Madeleine was? That is absolutely disgusting, and hinting to the readers that Gerry knew where Madeleine was because he had hidden her. Tell me how their name was blackened before the book with regard to the Calpol, letting readers imagine they drugged their children to make them sleep, when that type of Calpol was not a sedative, the sleep Calpol wasn't on the market until the September. Tell me how they blackened their name before the book came out, to the extent that Amaral hinted at - swinging, drugging, lying, hiding Madeleine's body, being cold and uncaring.
The leaving them alone had been investigated and sorted there was 'no intent' eg they did not want anything to happen to Madeleine they thought she was safe.
You say people reading the book were doubters anyway, well I wasn't and I read it. Don't you understand what a difference it would have made coming from the Police Officer that had been the co-ordinator of the investigation? He wasn't just an ordinary member of the public writing a book was he.
Madeleine wasn't 2 and a half in that picture, it was a photo of her from the Christmas before so she was 3 and 7 months. It was to help the search for Madeleine, would you have come up with a better idea in which to get her face circulated and remembered in peoples minds?