[GAMEPLAY] Thresh [E] Flay cannot stop Warwick [R] Infinite Duress

In attemps to peel off R from my teammates with my E it:

1. did damage to WW
2. moved WW into E direction ex. away from my teammate but:
3. WW R continued to do both the damage and the suppression CC

It happened multiple times consting my team deaths that could be stopped and the match.

What if other knock back based CCs cannot stop WW R too?