well, blind faith does last 40s, so he only have to hit with his autos. plus, against bosses there is always heal bombing.
I think that chapalot is a viable jack of all trades, especially if you go cleric2, because you can be a great healer by cleric2 priest 3 ( can’t really get much better than that) and a decent dps by chap and zealot, which even without melstis still does like 800% aoe dmg on a 50% uptime with blind faith to boot autos and fanatism to burst.
it is not as strong as a krivis3monk3zeal, but has better party play, and tbh monk3 don’t get THAT much dps over a chaplain, only advantage is that monk3 takes one less rank, and thus allow you to go krivis 3. but a dps focused chapalot can always go diev1 rank for cdr.
for dps focus ( i might go this way depending on new heal changes) you can go - cleric1- priest3-chap- diev1 ( cdr) - pala(2h mace atrib, restoration little sp recovery) / monk (2h mace atrib, hand knife armor break and palm strike bleed / oracle (pvp) / pd (pvp) - zeal 2.
for jack of all trades, swap diev1 or rank 7 filler for cleric 2.
i really don’t recomend cleric 3 tough, as it is quite lackluster.