Chetza the Feathered Plague - death by knockback mechanic

The rain of corpses attack that follows you around the areana has a knockback that can push you into the arena wall.

Once there the repeated knockbacks will keep you in the damage AoE with no chance of recovery.

Died to this several times in the story (the nest is a small arena), and have just died to this on level 10 of a chaos trial :/

Would suggest a reduced number of pulses of knockback?