Yeah I mean I'm not debating that with you though, I have stated numerous times in open warfare it wasn't actually practical. I can quote myself if you'd like so you can understand we're on the same page here as to that point. And exactly, so if it only provides a disadvantage in your opinion then why do you think it'll be too strong? You seem to be contradicting yourself at times. If you don't like dual-wield I can understand that but to say it wasn't historically used or realistic is just outright wrong.
And that's not even true for any of the rest of the titles I listed, except for Skyrim, which we can safely say isn't meant to be realistic in ANY regards anyways. The use of two weapons in combat was a real thing, someone else also even pointed out more recent historical context via the Middle Ages when full-plate clad Knights wouldn't even USE a shield in combat, they'd either use a 2 handed weapon or TWO weapons in general. (Mace and Sword, Sword and Flail, etc.) It was practical for Knights in full armor because they're already a walking tank/shield.
Here's some of my own historical context I dug up, goes as far back as Rome.
Dimachaerus in Roman Tournaments
EDIT: Even more Historical Context, here's an illustration from the
Mathern Fechtbuch, circa 1686.
It clearly shows two armored opponents wielding dual sabers in combat during a tournament. Like I said, not really viable in open warfare the majority of the time but in single combat? You bet it was used.
Miyamoto Mushashi, a renowned Samurai known for his skill in combat was also known to have created a form of dual-wielding as well. It's not something that's uncommon or out of the ordinary, just not always practical.
Niten Ichi-ryu, Musashi's dual-wield school
I'm only saying if dual-wield IS eventually a thing, I'd prefer it for civilian environments and arenas. I don't think anyone would reliably use dual-wield in their campaigns during open warfare or in major engagements lol