Smoothie,
The conservative catholic organization you referred to does not speak for the Catholic Church. I'm certain that Pope Francis would not approve of the articles blaming the tragedy on liberals. Check out the organization Catholic Democrats, to get a realistic opinion of the church's true teaching on political issues.
There is a huge difference in thought and interpretation by conservative fundamentalist catholics and progressive liberal catholics especially on political matters. The church welcomes both, but insists on adhering to the words and teachings of Jesus. Peace and Love.