Loki fans will soon learn their place in the pecking order. Mihawk fans are the more stubborn ones.
As for the Kaku thing, it goes without saying that since CP9 agents are world class assassins trained since childhood, they’d all have learned how to use swords in their training right? So even though none of them besides Kaku have swordsmanship as their preferred style, they do have sword skill. Kaku saying he’s CP9’s Strongest Swordsman clearly just means that he has the greatest sword skill in the group. Rings a bell