Pirelli have been making these high degradation tyres for years now, this is not a result of what the FIA asked them to produce, this is a separate issue.
You have to remember this years car has several important differences to those of previous years that affect the loads on the tyres, EBD for one.
The problem is, they made a tyre on request of the FIA. During the design, they tested it with a 2010 Lotus, which is significantly different in style to the 2013 car. Therefore the tyre design is inherently flawed.
If they had been allowed to design and test these tyres with a 2012 or 2013 car, I am sure they would have noticed the issues.
And why have they not been able to test them with a 2012/13 car, oh yeah, the FIA testing rules.
Then when they propose a tyre which should be better, several teams rejected the change.
So in conclusion, the FIA asked for **** tyres, the FIA gave Pirelli a flawed system to develop **** tyres (which were then found to be even ****er), were persecuted by the FIA for trying to test tyres with a less flawed system (testgate), and then were blocked by the FIA (and teams), when they found a workaround.
If people think this is all Pirelli's fault, they are as deluded as the Hamilton/Vettel fanbois.