Again, RDM is 1/3 melee at its peak melee. Additionally you should actually know the philosophy behind the kind of sword you're so on about too before you harp about it so much.

The rapier class sword was not a war sword so much as it was a dueling weapon, then often used as a weapon of station among officers of rank when firearms became more prevent. But even it its heyday they were not meant for frequent clashing, but rather for accurate striking. The game design fits the history and philosophy of the weapon - The rapier is not a clashing sword.

Also, Red Mages just happen to be some of the most vocal jobs in its history, you need only look as far as FFXI for that proof. I woulden't go putting too much stock on how loud people get about it. After all Duelle's been tooting the same horn for over a decade now.