As the title suggests: just as the mark cost for dying in open pk or allied areas is severely reduced, so should the exp loss. As such I think we shouldn't leave INRs behind if we die in those.
Every cache I ran and died in is at least half an hour of mobbing to get my exp back. I don't have this kind of time - maybe for fun activities, but not for boring drudgework that serves no purpose other than to recoup my losses. Players shouldn't be punished just because they participated in an organized pvp event and died.