“Why did it take 18 months for the “experts” to figure this out?”
The experts have sclerosis of the mind. Everything they base their understanding on is going by what happened in the past. As a result they are always refighting the last war. When change happens, they are particularly unfit to see it or understand it. They are true establishment creatures in that way - their understanding comes from studying what happened before but they don’t have the imagination of flexibility of mind to see something that is different - so they reject it out of hand.
This is very common and it plagues all “experts”. Karl Rove is maybe the perfect example of this. Their reliance on polls for their understanding - which are conducted and analyzed in the same manner they’ve always been conducted analyzed, constructs of a past event - is another function of the blindness.
If today is just like yesterday, then they will indeed be “experts” all the time. If today is different than yesterday, they will simply look foolish.
I;; simplify your post the msm and liberals are brain dead mentally ill zombies