I just checked, and the only things mentioned on the individual class path pages are Crimson Avenger's personality change and how Divinus Manus prevented Adrestia from being completely assimilated.
Also, we kinda have similar bits of trivia on other base job pages, like Ain's hair color and Noah's moon phase focus.
The trivia section is quite cluttered, thats why i feel it not needed. There was already a previous trivia that said Elsword and Elesis are conceptional 2 different character/playstyles.
As for the trivia bits, for Empire Sword case, I'm trying not to associate too much with Knight Emperor as again it should be her own character. Pyro Knight touched upon the fire affinity as Elsword learns fire magic while Elesis is kinda of more a fire blender and shoot flames instead of magic. Crimson Avenger change personality while bloody queen emphasized more on her relation to genesis. Adrestia is more of El but have relation to Immortal.
Other job pages has those trivia is because they are talking about the different paths that said character undergo. Tbh I'm trying to reduce the number of words for Add, Ain and Noah. I'm already planning to move the noah bit to the moonlight system page.
It's still true that they both focus on traditional swordsmanship, though. But that doesn't mean they're the same, as "traditional" is still somewhat vague in this regard, especially since they're using different types of swords.
"Fire blender" is a funny typo. Makes me thing of a blender that blends fire. Anyway, her flames might still be a form of magic, and Pyro Knight's NA background does call it fire magic.
As for everything else, yeah, that makes sense.
The kr background actually didnt mentioned any fire magic, she has the ability to create flames and manipulate it. The NA normally normalize the terms like how demonic-fused el = Dark el, which is not accurate to the real dark el
