If political deadlock and politicians having priorities of their own means even supermajorities of what the study calls the elite don't get their way, I'm not sure it helps the conspiracy theory about the power of the elite. (I mean, it leaves open claims about specific billionaires and more bizarre theories about shapeshifting lizards, freemasons or pizza shops, but they were outside the scope of the study)

The second point does lend support to the argument that politicians frequently fail to deliver what the public want, but that's less a conspiracy theory and more established fact :)