Arbiter of Ash Bug - forcing you to go Glass-cannon

For players who have very high DPS that can kill him and skip the Exploding orbs skill and activate phase 2 = it's okay for them

but for us players who have just enough DPS that makes him cast the Exploding orbs and then activate phase 2 = not okay! like really 0% chance of survival.

Boss is already using the Beams with waves that we have to dodge- Phase 2 skill at the same time the Exploding orbs from phase 1 (that has not finished yet!)

Like brooo... How to win this?
You stay in the middle of the beam = you die from exploding orb
You stay in the middle of the exploding orb = you die from the beam

And NO! for the other players who are wondering, Im not referring to the exploding orb that you have to wait for the beam to finish before you enter the exploding orb, I know that mechanic but that's not it., I am referring to the Exploding orb from Phase 1 (the very first time he cast exploding orb) and then beaming on phase 2.

I would suggest that when Boss enters Phase 2, all remaining skills/effects from Phase 1 will be deactivated. I mean, c'mon.
Or
at least let him finish the Phase 1 skills before entering Phase 2. Like you can just make him Stand there in the middle or something like from the POE 1 Searing exarch where he will be out of the arena while the meteor balls are rolling.

I experienced this on T4 only, Im not sure for T0-T3.

Wasted 2 sets of fragments on this -_- /sigh

I'll be skipping this boss until this gets fixed.

Bro I just died 4 times in a row to his beam attack in his exploding bubble I am so fuckin done with this game. Game is pretty much punishing players who do enough damage to quickly trigger phase 2 , but not outright 1shot the boss.
I was on Tier 2...