I'm not into alliances, and teams telling other teams the answer. They even have the locals give the answer, like the guy judging the building of the huts telling them what they did wrong.
The main interest so far is just how incompetent teams are. The casting is very vanilla, but at least in this episode one team blew up at each other, to show they are just racing automatons. It's all fast fast fast, the old days when you actually got to know the teams more (beyond just background stuff) is long gone. Rob and Amber were good, people liked them or hated them, but at least they created an impression.