Cilan explained their purpose:
Originally Posted by PokeMaster366
S-Class: Highest of the Connoisseur classes. They are experts and may open their own shop.
A-Class: They are known due to their ability and they may open their own shop.
B-Class: They are readers and may be assistants but still may not open their own shop.
C-Class: Lowest of the Connoisseur classes. They are beginners and are typically only assistants of an A-Class or above Connoisseurs.
I don't see what else they can really do, we know what Sommelier do, we know the rankings and their basic roles. Aside from seeing some of the B-Rank and S-Rank there's not much to really expand on, and showing a B-Rank doesn't seem like the most necessary thing in the world anyways.
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