Vergo vs. Law was basically Doffy's God Thread vs. Luffy's KKG and Kaido's Blazing Bagua vs. Luffy's Bajrang Gun all over again, with the villain taking the attack head on and being overpowered.
Doffy, despite having weaker armament hardening than Vergo, was more cautious and didn't allow Law's slashes to connect.
People are not prepared for Vergod's true power level.