Asserting that the BionicMobileAssistant is just a variant of the Bionic Handling Assistant is a failure mode of classification.
The true break point here is mobility.
A moving robot, like this ballbot, has a radically different attack surface and vulnerabilities than a static robotic arm, regardless of its precision.
It's like saying that an ambulance is just a more sophisticated "car"; it can go to people, which changes the entire deployment context and risks.
In Spain, if your cita previa for the doctor is on the other side of town and you have no transportation, mobility is not an extra; it's access or its absence.