Made no sense to have roadblocks in the switch partners leg, and there were a couple of legs with no detours or roadblocks, just ARIs. And no Express Pass (yay!) and no FF (boo!)
They certainly mixed up the task pattern this season. I don't think the Cody/Jessica casting had anything to do with the task selection. Back in he day, Detours always preceeded roadblocks, and the Fast Forward was made available in each leg until there were no teams left who hadn't gotten it. The pattern has changed a lot over the years. This finally, makes the tasks more unpredictable, and that is one think TPTB had long tried to repeat after season one -- the unpredictability. This season has it in droves!