He said on reddit that unless you have read the books, the significance of the moment is completely lost to the viewer, and its just another explosion.. which is pretty accurate.
I refuse to see the movie then.
I don't understand why that would make you refuse to see the movie, it seems pretty correct.
Because that moment when Ender realizes what he's just done, and everybody realizes it isn't a simulation...that is the climax of the book. That is the moment when the reader goes *WOW*, "What the hell just happened"?
Ender's Game had some action sequences in it, sure, but they simply served to advance the plot, they were not the focus of the plot. For example the "flash suit" battles were cool, but they existed more to show that Peter had the ability to think "outside the box", in 3D instead of 2D, and still succeed even when the odds were overwhelmingly against him, than to satisfy some extreme action fantasy urge in the reader.
The depth of the books come in the deep and nuanced psychological exploration of the characters. If you were to take that out, Ender's Game would just be another crappy action movie. If he did not know he was destroying the actual alien planet near the end, then what difference would it make? The series would have just ended right there.
It's like the recent Hunger Games movie that was released. Many people complained that the director made the action scenes weird and dull instead of exciting and action-packed like most Hollywood fight scenes. For example, in the fight scenes the camera was extremely shaky, there was no sound, and they typically only lasted a few seconds.
When questioned about his decision to do this, the director gave a brilliant response: Glorifying children killing each other in the movie would have made him and the people watching it no better than the spectators of Panem, who were simply there to get their sick jollies at the expense of innocent children.
What was more important to him, was revealing the writer's actual purpose - showing the dangers and horrors of a global dystopia, and Katniss' ascent from selfishness to finding her humanity. To do this, the action scenes had to suffer, but the movie was all the better because of it. If Ender's Game is to be nothing but another crappy sci-fi action flick, then the people responsible for making it have completely missed the point.