[GaryVoshol]

For some games it could work - given the timing constraints noted by the OP. For instance in Triple Play, either a tetra was stacked or it wasn't - once the refs made the determination, all they had to do was count.

Aim High was another thing altogether. I can see the arguments: "No, we got 47 balls in the lower goal, and you only gave us credit for 33." How in the world is that going to be verified?

FLL scoring is done at the end of the round, when play has ceased, not live real-time like Aim High. FLL also has the luxury (usually) of having multiple fields. The score can be tallied, the field reset, and the next teams can begin setting up while another match is going on at the other field.