Do you see the 4 shadows forming an X at the feet of each Beach Volleyball player? That's so annoying! It made me think for the first time about how good the lighting is at nighttime baseball and football games. You never notice shadows — certainly not a stark pattern of shadow from each player. Those shadows give the outdoor night games a dreary, indoorsy look.
The varied angles on the gymnasts frequently include glaring banks of light fixtures up at the ceiling. These should be off camera. Gymnastics should look great. It's all about how it looks, and it's hard to see. When the lights are visible on camera, they are the brightest thing in the frame. The gymnast should be lit up!