They replied:
The signs on the ground are very old and perhaps ambiguous, they tell me that upstream going down there is a sign that indicates the track towards the east.
Therefore they will send someone to redraw the signs on the ground and they said that your change is fine because the wooded track is more protected from the floods of the torrent.
They also updated the official GPX file: https://trailsfvg.42web.io/GC/MxGpxView.html?fileGpx=605%202025T-V2.gpx
So everything is ok, let's leave your changes, I will only update the order of the ways in the relation that are messed up.
many thanks and good mapping.
