I love it, Matt’s book 150 Reasons Barack Obama is the Worst President in History, was self-published in March 2013 and is already out of print. Hardly the peer reviewed book or reputable publishing house I would expect given how you flout it as evidence that you know what you are talking about.
In fact, several of the items in the books description refer to things done by other people in his administration. And while he is ultimately responsible for all that is done in his admin, those examples cannot be used as evidence about his personal intelligence.
I see this as an angry polemic from someone who had already made up his mind before conducting any research. Hardly a credential for being an expert.