This has been argued time and time again and removing matte lines in my opinion isn't restoration, it's revision (and it seems you say matte lines, when you mean matte boxes when you talk about the asteroid chase - and those would not have been visible in theaters, so I will not be restoring them).

The term restoration in terms of art, comes from painting restoration and it means to try an return the piece of art to some previous state, not to improve it. Removing matte lines and digital recompositing in general is like if an art restorer was restoring an old portrait where the proportions of one of the arms were slightly wrong and the restorer fixed the proportions. It could make the painting look better, but it sure as hell wouldn't be a restoration.