I think that's the rationale behind the specialization in DEX for female fighters, and it does make some sense, but the trouble is that DEX is usually carried over to things like speed and reaction speed, where it's not necessarily so appropriate. Bracketing speed of neural reflexes (which as the above re. music) is probably more equal, in terms of shifting mass quickly (arm, body, etc.), you get greater speed the more muscle mass you have, so speed and strength are really closely tied together.
This is a problem of RPG systems not being complex and simulationist enough.
A good system will have DEX and AGI as two separate stats, one determining your manual dexterity, the other your speed and overall physical agility.
Players Option: Skills & Powers split each score into two.
Strength: Stamina & Muscle
Dexterity: Aim & Balance
Constitution: Health & Fitness
Intelligence: Reason & Knowledge
Wisdom: Intuition & Willpower
Charisma: Leadership & Appearance
I'm not going to implement them because it's too much busywork and adds in too much complexity.