The post-fire pictures are taken from the back, and the power cabling does seem to be better organised (though bunching them together neatly may be worse, since it puts all the warm conductive cables tight together so if one melts they all burn together)

I have no clue why the pre-fire picture couldn't have the ethernet cabling nicely clustered and numbered, running in straight lines with the shelving rack - it would be tidier, safer, and easier to service.