Like in this moment (see around 2:31 mark Rossi flipping switch INSIDE the case of controller box.)? Well there would be lot of opportunities to do many manually or automatically (controller could automatically switch mode by sensing the load impedance/resistance ratio. QX containing Resistor+Capacitor or Coil and MATS used just resistors, ).
In my opinion this was just demo to prepare what is cooking in Rossis Lab if he really has something. I can't imagine many professional companies, that would give a dime without proper verification first. So why even bother if he does not have anything.
It is interesting to speculate and rewind videos back and forth, but I'm going can still sit on the fence until some real verification is done.
yup, it looks at the minute 2:31:19 sound and gesture are clear.