The King in the Mists second phase ridiculous attack combo

In his second phase, he has two attacks that when combined in the right order are pretty much a guaranteed death sentence. The ability where he says "Traveler's bane!" gives a debuff for 8s which stuns for ~2s you if you cumulatively move for ~2s during it. He will often say "The end of meaning is nigh!" or something similar after that and summon a big purple projectile and shoot it towards your location. This ball does massive damage, but is normally easily dodged. But I have to choose between moving and being stunned, often resulting in getting hit by the attack regardless. Or just standing still and accepting death, since it usually oneshots me at this point.

Considering I'm putting a fair part of my points in tankyness and even got lucky and got a decent tank unique before the fight, this just seems ridiculous?

This specific order of abilities isn't all too rare either, by the way. Considering I died to it thrice in about 10 minutes now >_>

I just have to hope he doesn't cast that ability during the debuff or assume I'll be restarting the fight in about a second.

Get yourself a charm to remove Stun, giggle at the red circle.

Have you tried moving far away as soon as you see the debuff, or moving through the ball?