Fans have a right to be up in arms. If anyone releases their work out to the public for their enjoyment and criticism, what on Earth do you think the fans are going to do? They will praise or rail against it. There will be those who find it okay, and then there will be those who are zealously hardcore. Its basically the whole reason anyone releases work to the public. They want fan reaction. Any sane author might even make alterations to further iterations of their novels based off fan reactions. Not all, but I've heard of a fair amount that do.
I am hardcore, I but I am still not zealous. I don't go to the lengths that many fans do. I'm still sane and willing to debate (though I freely admit, it won't be an easy debate as I have my SW biases).
And Oniya is right, Cracked is not worth listening too. Obviously the people have no clue what caused Anakin to fall and thus put out that clueless statement about the Jedi Order books. Jacen's fall to the dark side was a pathetic attempt by an author to create drama. It made no sense at all, especially since he had had a brush or fall to the Dark side previously and had been rescued from it. He had already been redeemed. Why would he suddenly fall so easily now?
Getting back to, Anakin; he fell not because of emotions, but because the Jedi Order (chiefly Yoda) failed to recognize how dangerous controlling emotions was; and Yoda told him to accept the loss of his wife and children... (big fat red flashing warning lights anyone?) The Old Order assumed emotions (a normal Human and alien aspect) was dangerous, when in reality emotions are helpful more often than not. Controlling emotions only leads to desperate angry outbursts.
Then you add into the mix Palpatine skillfully (although poorly written in the movie) manipulating those emotions to his advantage. Anakin had lost faith in the Order and turned to someone he thought actually understood him. Its not beyond the realm of belief. I certainly would have told the Order to go screw themselves if they told me to leave my wife and unborn children to oblivion. What sane husband wouldn't try and save his wife and children?
Luke's new Order is actually a vast improvement over the Old Order. If you take the time to read about it, Luke made some smart changes. I won't get into details, as it will get lengthy. I point to Wookiepedia.