i'd say it's a lot more likely it was killed because of the political slant. very few political articles are allowed to live around here, because they lead to divisive and unproductive arguments.
"Off-Topic: Most stories about politics, or crime, or sports, unless they're evidence of some interesting new phenomenon."
http://ycombinator.com/newsguidelines.html
Stories about politics have a very high threshold to clear to be on HN, because there are many other places to discuss politics online, and few others to discuss the core HN topics.