I love how on the catwalk where Kylo kills Han right at the beginning of the catwalk where it connects to the platform there's like five feet of railing. Like the designers were standing at the end of this tiny walkway that goes all the way across a mile deep chasm and one of them said to the other, "You know as I'm looking at this I kind of feel like right here [holds hands a few feet apart] could be a bit of a safety hazard if we don't install something..."