Moisture on a touch surface can interfere with normal operation, but a wet panel must first be considered as a possible electrical concern. Do not keep operating controls covered by a spill.
Understanding this situation
Follow the manufacturer's cleaning and drying guidance for the exterior only. Water that has entered the machine or controls is not the same as a few surface fingerprints, and removing a panel is not an owner drying method.
A useful next step
Stop use if there is evidence of ingress, tripping or unusual behaviour. Explain what was spilled and where, without repeating the event. A safe assessment is more useful than repeatedly switching on to discover whether the controls have recovered.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.