Yes, I have read it.

I assume you didn't see that the wiki page describes a "pedestrian call buttons" whereas the object pointed by the note https://www.openstreetmap.org/node/5356554438 describe the car traffic light on the road in front of the pedestrian crossing, not used by pedestrian, not having a button.

The "pedestrian call buttons" is already set on https://www.openstreetmap.org/node/5356554438

I just removed it from the car traffic light.