I also judge difficulty on the threat of losing the fight or atleast being pressured. Against Pica there is almost a 0% chance Zoro loses or is even threatened in any way.
Smoker vs Law is a good example of a fight with no injuries but of decent difficulty. And this is because despite Law not suffering injuries.
1.He was being pressured the whole way
2. threatened to lose the fight if he wasn't on his toes.
Pica did not meet those demands. It was most definitely not a high difficulty fight, not even close.
It was at the lowest end of mid diff and that's being extremely generous. More like a low-mid. Him needing help from the King is irrelevant as Pica wasn't even fighting Zoro at that point, he basically fled the scene. Fleeing a battle does not increase the difficulty of a fight.
Smoker vs Law is a good example of a fight with no injuries but of decent difficulty. And this is because despite Law not suffering injuries.
1.He was being pressured the whole way
2. threatened to lose the fight if he wasn't on his toes.
Pica did not meet those demands. It was most definitely not a high difficulty fight, not even close.
It was at the lowest end of mid diff and that's being extremely generous. More like a low-mid. Him needing help from the King is irrelevant as Pica wasn't even fighting Zoro at that point, he basically fled the scene. Fleeing a battle does not increase the difficulty of a fight.