I think they nerfed the power (or the scaling?) of Carian Retaliation in 1.04, so whilst it might still be a decent strategy it might not five-shot them anymore.
For me, Moonveil and Transient Moonlight almost trivialised them. I mean, I still had a lot of dodging and healing to do, but it wasn't overly hard that way, and it did feel I was cheesing them a bit with all the hidey-seeky round the pillars ready to unleash the weapon art. Of course, that relies on having a decent amount of Int. Corpse Piler might work well too, as I totally melted the Godskin Apostle in Caelid with that skill after my endgame respec to Dex/Arc.
I know other people have recommended using sleep, either through pots or arrows/bolts, and just sleeping one of them whilst you (and your summon) wail on the other.
Man, I miss this game. I started NG+ but it's not the same just blasting through the content (I was past Raya Lucaria within 30 minutes or so). My first playthough was one of my favourite gaming experiences ever. Really hope we get a decent amount of DLC before too long.