I will grant that there is such a thing as a difficult movie. There are movies where it’s a serious interpretive challenge even to puzzle out what the “point” is, let alone to determine how you would make that point in a new idiom and a new voice.
The Magnificent Seven is not that kind of movie. The Magnificent Seven is a movie where, at the very end, the main character literally looks into the camera and tells you point-blank what the story’s message is. This should not be a thing you screw up. This is Easy Mode for scriptwriters.
Remake: I am disappoint.