Then I don't see a reason to why compare them, saying he looks more pathetic, when both just have a different battle style.
Its like Mihawk vs Shanks saying that Shanks should use haki so Mihawk can have a skill fight lol.
Difference is it isnt just about what they use but about how they approach fighting in general.
Shiryu has that rat gene, much like Law in the Big Mom fight for example.
Zoro on the other hand is a Conqueror who wouldnt do it any other way except head on.
He'll blame his own lack of ability even if the opponent manages to land a hit due to distractions.
He'll hear that Kaidou is the Toughest Being in the world and want to cut him.
It's the mentality, between CoC users & non-CoC users. Much like HxH where Nen affinities & personalities go hand in hand.