Because all those parts are things that spoil the movie for others that haven't read the book or seen the movie.

I put spoiler tags on Shinto's reference to Hector losing to Achilles 1v1, then Achilles dragging his dead body back to camp. I also blocked saying that Achilles dies, which is predictable, but I really wasn't sure if it would happen or not. And also when I stated that Achilles cousin dies and they thought it was Achilles! How are these NOT spoilers???

Understand now?