BACKWARDS? Having the bullets face foward makes no more sense than does wearing the gun in a cavalry style holster. There's no more point in twisting around your wrist to swap mags than there is to doing the same stupid thing to draw your pistol.
I don't get this. My duty rig has two mag pouches on the left side since I am right handed. My spare magazines are positioned with the projectiles (bullets) toward my center. If I remove a magazine from my puch positioned this way, there's no "twisting" involved. It's a straight reload. I think you got your post reversed.