Spatial disorientation over Vegas at a CAVOK night??? There are not much places on earth with better illumination at night. Assume that he had a decent glas cockpit, so finding that 30L runway should be easy even if he would be left with only a whisky compass. Any 10h student pilot should have done better. My assumption is that the PF had serious issues with his eyesight and not the experience to compensate for that.
Very nice and calm ATC. Inbound and landing at LAS I had often the impression that they tested me how much ATC frequency changes I could write on my kneepad and not screw up...