I think that the oracle should not have the cleric spell list. Honestly I think it should be closer to Druid than Cleric. They don't have the feel of cleric because clerics lack ranged damage dealing but make up for it with support and durability with armor. The spell limits and armor limits kind of turn this on its head. So lacking armor they cant be melee and lacking too many ranged options they are in a rather painful middle.
Another idea is to make the focus choice matter even more and for example give rock more armor ability and others more damage abilities so they have a more certain place in combat aka front or back of the line.
I would take the spell list and make it much more like druid's than cleric. Some healing some damage with a healthy dose of buffs and utility.