[Jared Russell]

I guess nobody thinks it's within the realm of possibility that a minibot might fall off the pole or otherwise fail to reach the top?

In such a situation, being allowed to carry a second minibot could mean the difference between getting at least 10 bonus points (and possibly more if there are some towers that are unoccupied) vs. none at all.

That said, I agree that the rules seem to refer to the minibot as a singular entity.