Indeed, — I’ve noticed this too. It was done rather silently or I missed the discussion. I was dismayed to see that the filing cabinet for Nautilus was changed back to a file icon instead of the gnome default (which in my opinion is far better in resembling what it stands for). Often I think designers do a change just for the sake of change …
I did what I always do - Changed everything to a vanilla gnome look, with one change. I added a toolbar. 
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