Steps to reproduce:
Get a Netherite Sword.
Spawn an armadillo.
Attack the armadillo with a critical hit from the sword.
Expected result:
The armadillo does not roll up as the death animation plays.
Observed result:
The armadillo rolls up during the death animation.
Can confirm, though it may make sense to merge this issue into MC-268065 and generify it to be more vague. Something like 'Armadillos always curl up when attacked', as that seems to be the core issue here.