Not at all, of course they have it wrong.
the more that comes out, if one WOULD want to play the blame game,
you’d have to a) BLAME THE SHERIFF - who knows the guy is crazy and has been stalking Giffords since 2007; b) blame the teachers and friends of the guy for knowing he’s nuts and not doing anything about it, but fearing one day he’d crack and blow away the class; c) his parents who obviously knew the kid was crazy with the shrine in the backyard with the skull in it.
This particular similarity (everyone in the know around the guy knew he was crazy including law enforcement, NOBODY DOES ANYTHING), is exactly the same as the Ft Hood shooting. They knew Hassan was unstable and going to militant radical islam websites and knew he was doing nutty things and nobody did anything. Their sitting on their hands allowed Hassan to do what he did. Just like everyone around this nutjob in Arizona.