What gear and techniques do you suppose would be appropriate for the conditions? Any evidence of a qualified Alpine Guide?
If it was a 70 degree slope they needed rock climbing gear for winter
My guess is they were somewhere by mistake or should have turned back
They should have had crampons, ice axes, and training in self-arrest techniques, which are intended to prevent exactly what happened. I’m not sure what clothing they had, but some of them being treated for hypothermia suggests it was not adequate for conditions.