If your DPS is high enough the only mechanic you deal with in P1 is one death caller and obviously the pillar. We rarely get shadow fel bursts anymore and if we stacked our composition and dropped to 1-2 healers, we likely wouldn't even have the P1 death caller either lol.
Not that it's a particularly challenging part of the fight, but if you have DPS like I listed above you only have two movements in P2, meaning two sets of wroughts and two sets of a shackles. The third set of shackles doesn't last very long for us and we just sit still transitioning the boss before the third set of wroughts start firing. A month ago we basically did the same thing, but had to deal with the third death caller, the third set of wroughts and sat still transitioning within the fourth set of shackles.
Obviously people looking for first kills won't be doing this, but you could theoretically both solo tank and solo heal this encounter if you killed the source of chaos fast enough, and had some people stand in the laser to prevent people from getting clobbered as the tank got knocked back lol.
The only challenging part of the fight for healers is doomfire healing (which is trivialized by 1-2 doomfires) and I guess the second set of wrought/chains, that normally coincides with adds streaming out these days as well. The previous combo not being that difficult if you just use a bunch of CDs for it (which you should, because there is 0 dangerous damage after that portion).