It's not infinitely rotatable, though, like some knobs are; TFA mentioned a 270° rotation range. So a pointer “beak” (or some other haptically recognisable asymmetry) should be easy to add.
It's infinitely rotatable unless the software tells the motor to push back. The encoder appears to be relative, rather than absolute, so the physical positioning at power-up is unknown. Thus, the physical knob can't have a physical pointer with consistent behavior.
I have an LG washing machine with a knob like that. After power up, you have to turn it one notch before it lights up to indicate the current position, which is the default Normal cycle. So the knob has to be symmetrical, with no tactile pointer.
