No - that's it. Power Word: Shield, Rapture (perhaps with Doomsayer to extend it's duration), and Clarity of Will are the only remaining absorb abilities.
Clarity of Will because it doesn't apply atonement is unlikely to be commonly selected in raids, despite the lackluster T90 alternatives of Divine Star and Halo. It's largely a 5-man tank healing tool. It's 2.5 second base cast time is a large amount of time to be neither applying atonement nor healing the atonement targets.
Rapture with PWS is powerful, since PWS remains an instant (GCD) cast and applies atonement. When lined up with Pontifex with Renewal of Faith (increases all atonement durations by 10 seconds) this sequence can occur (with Contrition which increases atonement durations by 33%), assuming 10% or so Haste:
PWS > Rapture (Doomsayer Rank 3) > PWS > PWS > PWS > PWS > PWS > PWS > PWS > PWS > Power Word: Radiance > Pontifex (Renewal of Faith) > Penance > Smite > Smite > Penance > Smite > Smite > Smite > Penance
So there's a maximum of 15 atonement targets all lasting for 10+ seconds after Pontifex 9 of whom have shields on them and all of whom get a large amount of subsequent healing. This is a good sequence for handling a large raid-wide damage ability, and it's not terrible on mana cost, but notice how well-timed it has to be - you're starting the sequence well in advance of the damage, and it gets messed up if it's mistimed.