Even as Arcane spells, they're not Wizard spells. You'd have to somehow have them on your spell list to learn them from such a scroll.
That's different for a Chameleon (Arcane) and Archivist (Divine), but the rest don't have much use for it. Perhaps they can place it in an Eternal Wand or a Runestaff (which others can use with UMD), but that's all.