I think its another way to put a challenge into the game. This year there are so many things that the robot could possibly do, that it would be pretty easy (remember: everything's relative) to make your robot perform any given function as its primary function and do it well (one module for manipulating the multiplier balls, one for the pull-up bar, one etc etc etc), and swap them out to complement the capabilities of your alliance partner. By changin the rule, a limit is placed on teams who choose a modular interchangable design, and thus teams are encouraged to build one robot that can do multiple goals in a single match, which CAN DEFINATELY be a tougher task. Just another challenge FIRST wants to give us
