ReRaise is not really as WHM exclusive as people would like to think or believe. With scrolls of reraise available for 7 gil, or even the reraise gear. Only WHM has a spell for it, and the highest RR item I have seen is only RR2 (I might not be fully aware of all items so I am not sure if there is an RR3 item out there).

Auto reraise for WHM is, in my opinion, a lazy perk.