The lack of potions, combined with a badly-timed Rage transition and some miscalculations (Full Burst without debuffs on second wave didn't do as much damage as expected; continuously facetanking poison was a bad call), completely borked my run. Gaia got focused early (no potions to recover) and wasn't available when I needed her. I assume many of those who ran without a healer also failed.
I might still be able to clear despite the "original content", but it won't be a faceroll like the last event where tactical errors and bad RNG could be recovered from. Completing all the challenges will be much harder.