KO (the game designer) says that's thematic, not an exploit. Coming back from the dead obviously makes your prophet more holy.
So, exploit away with no feelings of guilt.
BTW, Power of the Spheres (via Crystal Shield if desired) also boosts your H level, if your priest has magic paths as well as H. I use this to boost e.g. E2H2s to E3H3s for Divine Blessing.
-Max