Better take Vivre Cards infos with caution. Arber himself said he doesn't identify as a swordsman when he fights and Zoro confirmed that he's more like a total killing machine, with the sword being just another one of his tools.
It's also stated that his hobby is collecting swords so, if he really was a swordsman, wouldn't he chose a powerful & renowned sword as his personal one?
Arber is just a practical fighter imo, and his sword choice is proof of that (a sword only good for disarming the opponent).
Queen as Franky's dad? I think that's only a deduction made from some readers because of the coincidential timeline. Again, Vivre Cards must be read for fun only.