Yes it is. Its not like duel wielding guns, its part of an actual combat style XD
Edit: Well, in a call out to people who don't understand the concept of duel wielding, its part of simultaneously using both weapons(But not using both at the same time). Its a bit like empty handed fighting, just with weapons. Also, you can duel wield longswords if you're strong enough
yeah your totally right i forgot that using two guns at the same time is entirely practical and doesnt endanger you, civilians, or your squad mates at all... have you ever fired a hand gun? a sub machine gun? a rifle? even a 9mm handgun has enough kick to make using two impractical in an assault situation, it tells you something when the best assault/CQB squadron in the world uses single Pistols to clear rooms (1st SFOD-D).
Dual wielding swords while different from guns is the same way a sword is heavy, I'am a college athlete (lacrosse) and two swords would be heavy for me to the point where they are unusable, i play 120min games with a stick that weighs a few pounds and THAT can get tiring even swinging two large blades for a few minutes would be exhausting.
also Star Wars... really guys?