1) Daniel 12:8 is in a completely different context that has nothing to do with Daniel 4 unless you initially assume Daniel 4 has a double future meaning.
2) weak reason given for Daniel 4:17 indicating a second meaning; the expression "so that people living may know that the Most High is Ruler in the Kingdom of mankind and that he gives it to whom ever he wants". It does point to God but the point of that prophecy was for Nebuchadnezzar to recognize it.
3) not all of the book of Daniel talks about God's Kingdom. Even the chapters before and after Daniel 4 have nothing to do with it. Chapter 3 is the firey furnace and chapter 5 is the handwriting on the wall.
4) the JW of the story jumps to different texts and chapters that are not related to the event in Daniel 4 to say that Daniel 4 has to have a second fulfillment.
5) no reason why Luke 21:24 is connected to Daniel 4, other than pulling it out of context and applying it there.
6) Omits fact that the Bible Students believed 1914 to be the end of the world, Gentiles ended in October whereas the war began months beforehand. But in all fairness to the article, any JW wouldn't know or even think of that.
7) Jerusalem didn't fall in 607 bce, it fell in 586/587 bce but that's another lengthy subject to talk about.
Things to note: the "What Does the Bible Really Teach" book and other literature by the Watchtower give the reason that Daniel 4 has a second fulfillment because of the tree. They say that trees often represent individuals or Kingdoms, and that in this case it representa God's kingdom. But this reason wasn't even mentioned in this article, it just jumps to the idea. The person is never invited to read all of Daniel 4 to get to the actual feel of the context, and to have a chance to evaluate. I also noticed that the article and information always refer to the fact that Nebuchadnezzar had his rulership removed for "7 times", yet the reason for that is hardly ever discussed which could help get a better picture of the chapter.