JJ is pointing at something on the second screen, which is the "courtesy of" screen, right? Watch what he says. It sounds like "Vanessa"! Please somebody confirm this to me. And that lower left is where her and Ralph's picture is located.
Mark says "we got a U-turn". Listen to how he says the last word, there is no -ed added to U-turn. I doubt he would have said it as in "we gotta U-turn", they didn't want to do that to anyone, so why would they make that decision as soon as they saw the U-turn? JJ was just talking to them about U-turn strategy and then it happens to come up in the next leg so he proclaimed it like "well we got a U-turn..." But I would say they aren't U-turned and don't use it.
Brenchel definitely gets U-turned in my opinion. They are not in front of the U-turn when Rachel says "shocker!", which means they saw they got it, stepped away to get out the detour clue and see what they have to go and do. Brendon DOES take out the detour clue, don't go by the caps, watch the video to see.
At this point, hearing JJ say Vanessa, I think that Vanessa and Ralph U-turned Brenchel.