It's trivial to give a regular CPU better sensing than you in dozens of variables (pressure, temperature, voltage, CO concentration, etc), so your point is rather weak.
But that isn't what Isinlor was talking about. They said "moving electrons around" within the normal CPU circuitry as if that was the same as actuators controlling the external world. It's not.
In fact a single transistor is both a sensor and actuator.
In fact you can use them to do things they were not designed to do like trough row hammer:
https://en.wikipedia.org/wiki/Row_hammer
CPUs can also detect things like collisions with cosmic rays.
CPUs just can't produce macroscopic forces relevant on human scale.