I don’t think the Mcann’s did anything particularly unusual. I suspect that many parent’s are absolutely terrified for their children’s safety and so when they read of this case seek to identify fault on the Mcann’s part in order to convince themselves that this horror could not happen to them.
The truth is that such events are very very rare it is exceedingly unlikely that any child brought up in a healthy way could be entirely protected from abduction.
I would suggest that rather than trying to demonise two obviously loving parents energy would be better spent in identifying the causes of offending and trying to locate the child. It is as likely that she is still alive as it is that she is dead. Were I in the Mcann’s shoes I would not stop until I had an answer and if I needed brass I would certainly sell the story.
I do agree that the use of the Media was like ridding a tiger but unfortunately the Tabloids will spin any response even a dignified silence any way they want to sell a story and blame those close to the victim is always good copy.