^Yokoyama is awesome. She's top 16 anyway and she's only going up. It's no surprise she's there. In fact, she should be included.
From an objective perspective Paru and Milky have the least right to take Kasai's spot, but yeah, it makes sense. It's the way it goes. I'm not even surprised or annoyed by it anymore
. Personally I would have preferred Kasai over Kitahara, but all the transfered members need their momentum to keep them popular so their (Rie, Yui, Milky) inclusion makes sense too.
Actually, I'm quite happy if that's the senbatsu. A lot of great members.