I'm a bit out of touch with FLL (my kids aged out), but its not surprising. Little of winning a FLL competition is related to the robotic performance. The team that wins the robotic portions won't necessarily do well overall.
Given that, and the sophistication of many of the teams, and the way the competitions are designed. The best teams are usually just doing some form of preprogrammed dead reckoning sequence and getting a bit lucky and rigorously placing the bot at the beginning.
AKA, while the NXT/EV3/etc devices are capable of sensor feedback, few teams made use of it. Its likely all the FLL teams need for most of the competition is three motor forward/reverse.
PS: Maybe I sorta failed to respond to the main point, which is that the spike kits aren't there to be "cool" sitting on the shelf and excite kids who get them under the tree. They are mostly purchased by educational/FLL teams where the build instructions and/or goals are provided by a 3rd party.
Using sensors in the robotic competition was unreliable. A simple change in lighting from your development set to the competition board would screw everything up. I thought FLL was great, but as a robotics competition it's actually harder in some ways than the higher FIRST competitions because lego's are small and very finnicky.
Given that, and the sophistication of many of the teams, and the way the competitions are designed. The best teams are usually just doing some form of preprogrammed dead reckoning sequence and getting a bit lucky and rigorously placing the bot at the beginning.
AKA, while the NXT/EV3/etc devices are capable of sensor feedback, few teams made use of it. Its likely all the FLL teams need for most of the competition is three motor forward/reverse.
PS: Maybe I sorta failed to respond to the main point, which is that the spike kits aren't there to be "cool" sitting on the shelf and excite kids who get them under the tree. They are mostly purchased by educational/FLL teams where the build instructions and/or goals are provided by a 3rd party.