I'm joking I have no idea, I just like the name "Balbanes" more than "Barbaneth"
I don't even know how you pronounce it. I say "Bal-ba-nay's" hard to write it in text form. I wonder how many people even know who he is because he appears for like 30 seconds and is never seen again, on account of being dead, if you forgot he is Ramza, Dycedarg and Zalbaag's dad. Also I stole his name for a character in my story called "Balthanes" pronounced similar, although even I say "Bal-thanes" instead of "Bal-tha-nays" by accident.
WotL has cool cutscenes though so it might be worth a shot if you can survive the lack of Balbanes.