I'm not sure I would use my sanction items if I was just learning something and that's why I keep a decent piece of non sanction gear in my inventory to replace it.
For the White Raven fight I just put on other equipment if I die and in-between fights take the 2 minutes and get sanction.
I have to go back to Grid every primal win anyway to get the quest again so if I have died I get sanction again.
The only time it seems to be a bummer is if I get unlucky on a night of speedruns and die. One death I would use a scroll, more than that and I might tele back to town to get sanction... If we are dying that much anyway I will just use a non-sanction item.