Jonathan Cary wrote:
You will never get complete consensus on the issue. Mike has chosen to give GMs in the campaign the authority and responsibility for adjudicating this on the fly. Not making evil descriptor spells automatically an evil act is just part of that.
And it is the right call. Part of the appeal of Pathfinder is that it is not all goody-two-shoes adventuring. Almost all of the factions in PFS are led by neutral NPCs. There two good NPCs, and one evil one.
Spells like infernal healing (an Asmodean spell) are part of the flavor of the campaign. If you remove them, or make it an automatic alignment violation to cast them (which amounts to the same thing), then PFS loses a lot of its flavor.
Personally, I think the Undead Lord / Vivisectionist ban is silly for this reason.