It is a rehashing of the same stalled philosophical debates that are already tired. They didn't present any scientific evidence for biological necessity for intelligence, nor did they assert their religious authority. It is completely pointless.
You don't understand what I am saying. It has the authority to make a decision about these questions but it doesn't claim that authority and do it.
It could state 'intelligence is only something humans can have because we have God's authority to say so', but instead tries to use science and philosophy to make those claims. This doesn't work, because everyone else is trying the same thing and it is just a mire since there is no science which can prove intelligence is biologically based and there isn't even a standard definition for intelligence.
Instead of joining everyone else in the same tired debates while providing no proof for their conclusions, they had an opportunity to use their religious authority to go 'Because God told us' or whatever, and they didn't, so this document is effectively pointless.
The document is just a summary of a bunch of arguments and assertions that have yet to be proven either way. Every single thing they state as a given can be stated as not being a given just as convincingly. If they had claimed religious authority to make those statements at least it would have meaning. I am glad you found wisdom in it, but anyone familiar with the debate over a necessary biological basis for intelligence will find it unconvincing.