At this point, I barely log in anymore thanks to this fight. It's blocking me from other content and it feels like there's nothing I can really do about it.
And before you ask, no, it's not me. I know the whole rotation and I've made it past super bombs with both my Paladin and my Bard. It's rare that I ever get hit by anything avoidable any more.
The closest I've ever gotten was once when we got him down to maybe 10%. We had all magic users, so we were going to LB the second set of adds. Unfortunately, the off tank couldn't get aggro on the adds and the LB went off with the adds in the southern position (so the sludge stuff trapped us all when Landslide hit).