Not my department, but:
I don’t think it will cause immediate damage.
I think worse possible case would be a stall if you whack the throttle open at very low speed.
Generally the bike probably won’t pull as well at low speed

I would check the wiring/connectors for security/corrosion/breakages

 

The whole STVA has two connector plugs that look the same but are a shade different in colors. They will reach the wrong connector and will plug in too.

 

Thanks that makes me feel better. Is the STP sensor just for low speed idle? Either way I'm going to try to take it off and clean it if possible. Connectors and wires look good. If that doesn't work I'll order a new one.

 

Mostly PSA, always disconnect battery before disturbing computer/sensors wiring. Or follow manual.
Clean and reseat connectors 1st, do not remove and/or adjust the STPS (Secondary Throttle Plate Sensor) unless you are familiar with how it works, note/mark initial position, etc. Secondary throttle plate or valve works mostly at low to medium throttle positions too smooth out transitions, etc., but it also can affect other situations, it kinda allows the use larger bore throttle body in a smaller engine, its controlled by computer/ECM from other sensor data/input. Plenty of internet discussion on them, but most agree they must be properly set to work correctly, as in no fault codes .
BTW, some connectors on TB are identical don't mix up. Sometimes cleaning ECM connectors also helps.

Idle is controlled by ISC (idle speed control).

 

I think Mitch has a video on cleaning and adjusting the STP sensor.

 

Is the STP and TPS the same sensor?

 

TPS = Throttle position sensor
STP sensor = Secondary Throttle Position sensor

 

trimming the secondary throttle plates by about 20% was a performance mod done to kawasaki 650 race motors. Just for fun I did it to my FZ1 and Versys, didn't really notice a difference, though it was supposed to help with flow.
knowing this I'll bet you could ride it for quite a while without clearing the code