In other words, the parameters of 501(c)(4) organizations were already well established, and being primarily "political" (when you think about it, a rather vaguely broad term) is just fine, you're focusing too much on the words of art "social welfare" vs. what they mean in practice.
Even Obamacon (con as in "conservative") Peggy Nonan has woken up and realized the implications of this (http://online.wsj.com/article/SB1000142412788732441260457851...):
"What does it mean when half the country—literally half the country—understands that the revenue-gathering arm of its federal government is politically corrupt, sees them as targets, and will shoot at them if they try to raise their heads? That is the kind of thing that can kill a country, letting half its citizens believe that they no longer have full political rights."
Do you really think that's OK?
It is not just the problem that they were targeted based on name (I actually think that's pretty reasonable) but the questions that were asked, the time it took to get approved (or denied) and the fact that IRS lied to congress about it.