So this is the Bochetta de Levade saddle and the key spot, right? https://youtu.be/I3pQbankkXA?si=4cshma0CWV54qbdV&t=581 
And this the gully up to the saddle: https://youtu.be/3qObgHMSdAk?si=v2QzhFkdNQGqwOik&t=118
Cause on the other parts according to LIDAR the steepness is not more than 40° (thus no hints for dangerous terrain).

This speaks in favour of the accuracy of the information provided by CAI. Seeing the videos, I also guess that CAI Salò is with "third-grade difficulties" not referring  to UIAA scale III but propaply to CAI hiking scale?

In my humble opinion, I generally think that someone who is active in CAI can better assess alpine conditions and that a lot of fuss has been made about nothing here.