Yes, absolutely.
I have to agree with the author that Gog is a fallen angel. We know, simply from the fact, among others, that when Satan tempted Jesus and said "All these things I will give You if You will fall down and worship me", Christ acknowledged that the worldly kingdoms were under Satan’s control. He did not dispute Satan’s rule over the world’s governments.
Therefore, we know that Satan, is, as God put it, "the god of this age" and we know that the angels who chose to go with him in his war against God are, along with Satan, the power behind human governments. We also know that one of the titles that demons have are "princes". So when God refers to "Gog" as the "chief prince", that tells us that this is a high-ranking demon who is the "chief prince" over that region of the world.
I believe that Gog will manipulate Magog and the Islamic nations to move against Israel under the ultimate control, of course, of Jesus Christ.
And I also believe that Jesus will rapture His Church out of here before all of this goes down.
It's supposed to be like in the days of Noah. Noah didn't get raptured out. He was instructed by God on how to survive. He obeyed and survived. Same with Lot and his family. They didn't get raptured out. God told them what to do and those that obeyed survived. Lot's wife, of course disobeyed and didn't survive.
In both cases, it is the evil and wicked that are destroyed/removed, not the faithful. We'd all like to avoid the trib, but scripture just doesn't support a rapture, especially a pre trib rapture. jmo