That explains it. You haven't beaten it, which is why 3 of your points are wrong. I won't spoil it though.
Btw, I had 170 hours on the game before I beat it (I'm a completionist, and there are hundreds of missions), and there were still a few missions that I couldn't beat because the monsters were so %*$#ing hard!
It's ridiculous how long it takes for the story to really start developing, but overall it's worth it (there are a few jaw-drop revelations). However, if you don't have the patience for something like that, it's not the game for you.