Zaqul no longer even needs any nerfs, simply because by this point every guild that that farmed mythic up to Zaqul can just do the burn strat, which makes this boss MUCH easier than what it was before.
You no longer need to hold P1 and you don't need to realm dance P4 - you can just have your whole raid (aside from delirium assignees ofc) stay in fear realm whole P4 and DPS him down through the DoT.
It became a pretty simple and straightforward boss.