Echo of Lilith Fail

I’m sorry but this boss fight just ruins the entire game.
It’s just the most ridiculous thing I’ve seen in the Diablo universe so far.
So many game mechanics that come into play no matter what you do. The boss should be dead by now, but it’s still flying around spawning monsters and so on. Just because you have to let the sequences run to the end and then you start again from the beginning in the next phase.

And to make matters worse, you can pack in as much life and armor as you want, you’re just dead when you get hit.
In my eyes simply ridiculous, and then you have to complete such fights within a seasonal journey…