mharky wrote:It only has to be taped if it has a solid line around it.
Yes.
But #14 shows why it's a good idea to tape it anyway. JonX saw some 50% of the best runners in the world coming out of the control into the trap. They've made their route choice, they aren't trying to cheat, and they can see where they are going. But for the tape they would have continued through the olive green. WOC reinstated people who saved time by going through two black lines, two red hatches - its hard to imagine them having the courage to DQ half the field.
Whether the olive-green trap was a good idea or not, the tape saved a major embarrassment.