I found out an interesting thing that might be causing the FP lines to be longer, causing the normal lines to be longer. It does have to do with FP+, but not because more FPs are being handed out. This issue should resolve itself once the system is working properly and employees are trained better. So hopefully this won't be an issue come later next year.
But as I said, I did not experience this during my trip this week, as all of the lines were very short, except Jungle Cruise (30 min). My friends they have seen the same short lines in all of the parks the whole time they have been here. They said, maybe a little longer (10 min) instead of walk on, but short.