No, it is not a free kick. In my opinion this can be subsumed under the incapable player definition from Kid and Teen size, since the robot is not getting up manually. So it should be removed for a 30 seconds penalty.
No, it should not. Verbal communication should only be allowed from the technical area or the space for the robot handler, but never from within the boundaries of the field of play. Good point, should definitely be clarified. The point with the verbal communication is that it is similar to the human game. And in human soccer, the players may communicate with each other and with the trainer, but the trainer cannot walk on the field. The robot handlers on the field in adult size are only to ensure the safety of the robot. They should not in any way influence the game except of when the robot is falling down or the referee asks them to remove or re-position the robot.