Sniffers don't have any form of knockback resistance despite being a large-sized mob

The Bug:

Sniffers don't have any form of knockback resistance despite being a large-sized mob.

Steps to Reproduce:

1. Summon a sniffer.
2. Attack the sniffer with a knockback (sprint) attack and observe the knockback it receives.
3. Take note as to whether or not sniffers have some form of knockback resistance.

Observed Behavior:

Sniffers don't have any form of knockback resistance despite being a large-sized mob.

Expected Behavior:

Sniffers would have some form of knockback resistance.