Entities that don't walk aren't visually knocked back when killed

MCPE-19222 has not been fully fixed; some entities that don't walk aren't knocked back when killed, plus status effects and explosions that kill entities don't knock any entity back.

The bug

The parrot, phantom, cod, salmon, tropical fish, pufferfish, and bee have their model locked client-side when killed; only their hitbox is knocked back, therefore making experience appear away from their visual position. However, the squid, bat, blaze, ghast, guardian, elder guardian, and dolphin are unaffected.

Video Example

https://youtu.be/UWFNbh3Cims