Page 131 of the WT's commentary book (in the above mentioned edition) on the book of Daniel quotes The Wycliffe Bible Commentary in support of the claim the 4th kingdom in the vision of Daniel chapter two is about the Roman Empire. I own The Wycliffe Bible Commentary. Page 789 of that commentary in regards to Daniel 7:7,8 says the following. "As in chapter 2, the fourth stage of empire is Roman."
I agree that It is entirely unsurprising that Christian “faith-based commentaries” hold to traditional Christian interpretations, and it was for full disclosure that I mentioned that the commentaries were faith based.
Since I am an atheist, I don't believe that the book of Daniel is a prophecy in the since of being inspired by God. But if it was written in the 6th century B.C.E. it does meet the dictionary definition of being a prophecy. If such is the case then its writer (whether Daniel or someone else) was a prophet, in the same sense that Edgar Casey and Nostradamus were prophets - whether they were true prophets or false prophets. The writer of the book might have been a brilliant futurist, maybe even one with some 'psychic'/ESP powers to foresee the future.