They were obviosuly stronger than the group of millions that allegedly “beat” Vivi.
What happened to Vivi, Nami and Usopp was the same as what happens to Luffy and Zoro when they need to run away from gifters. At the end of the arc, all of them still beat actually relevant opponents with a position of authority in the enemy ranks. The seven duo were not as strong as the other officers, but then, Vivi soloed them in seconds. She was never portrayed as a weakling in any of the arcs she was in. That’s why Zoro was saying this
Nah your point was dogshit. You’re trying to act like this is some kind of calamity for Vivi
While literally the chapter before Nami and Usopp are looking like this