While Scene 38 Reimagined was a standalone project made just for fun, it does not fit in with the dated look of A New Hope. If you want to put it into an edit of A New Hope, then edit all the VFX, models, practical effects, and matte paintings in the movie to look realistic and in-line with the sequel trilogy and Rogue One.
That’s exactly what the edit does. It replaces most of the film’s effects with modern VFX to lessen the impact of the scene.