Holy knight

[Kabooa]

tl;dr
Job identity (PvP and PvE) and animations to lend itself to enough realism to not make it utterly ridiculous, and not in the same way someone can wear a metallic green pig-suit kind of ridiculous.

There's almost no realism beyond the basic low level weaponskills among animations. You really can't use that argument. Just in the Paladin's weapon models alone there's enough variance that the animations hardly line up with what the sword should be used as.

The Dark Knight Animations work with literally any metal stick, let alone differentiating them between the various models of actual swords.

This goes on and on between the various weapon types.