I think this is because political science, to me, seems like a lagging indicator of whats going on in the political sphere of the world (at least when it comes to "current issues").
It is also very telling that established powers feel very threatened by Nihilists, anarchists, activists, Lulzsec, Anonymous, twenty-somethings who haven’t talked to the opposite sex in five or six years, yet academics seem to not be able to clearly frame what is really going on (maybe to the benefit of those who are marginalized by the status quo for that knowledge will most assuredly be used against them).
Though Hayden hinted about it, there are some fundamental things going on here that stand in the way of such analysis, after all one cannot truly fight that of which one does not understand…