Realism; Strength is not important for swordsmanship(?)

[Gollum]

Originally Posted by Tomsdad

IMO it does. With enough skill you can hit more precisely, which means you can bypass armour or hit more damaging targets. The net result is you do more damage. It's not direct like the way ST does but, but its a constant enough effect to count IMO

Right. And that is even more true (at least, more sensible) with bowmen. More you are skilled, more you are able to hit a far target. Hitting a far target requires precision, of course (DX, in GURPS). But it also requires strength, in order to stretch the bow to give the arrow enough speed.