No, I'm not arguing any of my personal points. I'm attempting to counter yours.
My main reason to want to abolish flying? I was an explorer, long, long ago. And I guarantee you, one of the most exhilarating moments in my tenure playing WoW was getting into Ahn'qiraj before the wall came down. That was exploration. That was tight.
Now we just fly up a cliff. I guarantee you, flying up and landing on Neverest is nothing like climbing it on foot.
I also feel it makes the game too safe and diminishes content.