I have wonders if teams asked there cab driver if they knew how to get to the other Detour and the cabbie said no, or was unsure. Making them all choose the Speedos.
I remember in TAR 9 leg 3, when teams had to either search though Russian nesting dolls or clean a trolley. The cabs knew where the dolls were, but all the cabs had a hard time finding the trolley place. Many took the trolley Detour, but had one hell of a time finding it.
"The Detour for this half of the leg was Scour or Scrub. In Scour, teams had travel to Dubrovka Theatre to search among 1,500 pieces of Russian nesting dolls to find one of 10 microscopic clues hidden inside on this doll. In Scrub, teams had travel to a trolly bus depot at 8 Trolley Park to thoroughly wash a Russian public trolley bus, respectively. When the bus is cleaned, a bus driver would get their next clue."
Wiki.