Do you really think Fnatic is going to beat Loud? Let's pretend that didn't happen once because of a choke from Loud...
That wasn't a choke, they genuinely looked super lost on their attack side. Loud's C hold was just too strong. Remember FNC also struggled early on against Furia on Haven with the same Harbour/Viper comp. Against Furia they were able to adapt, but Loud is a different beast.
It was probably more a lack of experience against that team comp. Loud simply had a good read on the meta and were well-prepared.