I wish I had an answer.
Well I wish I had an answer that was positive.
I have posted my breakdown on the council boards, tweaked specifically for max DC's, minus cookies. It shows a Divine DC caster is useless against these kinds of saves. To add insult to injury a Divine Caster does not have the luxury Arcane Casters do with both more debuffs available and a wider variety of spells to choose from to allow targeting a "weak save" an option.
No.
Divine casters main bread and butter are Evocation spells, mostly on Fort saves. Which barely breaks 80. Having near 90 save trash mobs means I may as well not bother casting anything. Also, of note...to reach that number meant gimping my build into anemic red name DPS. All twists, all feats, etc, etc, for DC meant I would have a truly weak build for any boss.
Of course...hmm well I thought I had something positive to add here...perhaps I will think of it later...