Weapon training and unarmed training are just different. They require different skill sets, and a different training mentality.
This is one of those were I agree in general, but don't agree in specifics.
Yes, weapons work requires a different mind set. So, they are generally different.
Yet, in FMA our weapons and hands are the same. And, when I do Aikido, having roots in Kenjutsu, and "cut" rather than "pull" the waza is more effective. Done this way, even without a weapon, I am never unarmed.