Yep.
Sharp swords got damaged and lost their edge quickly.
Butterknife sharp they were.
I use a machete as one tool to help with gardening. Hard to keep it sharp, constantly sharpening it, so you are probably right. I suppose swordsmen plunged their blade into flesh with the sharp point to cause the most harm. I have an antique Japanese sword but have never used it against a living creature, so this is of interest to me (in case the Obummer zombies run wild soon).
Napoleon said “la pointe, la pointe”, was the key to sword play. He instructed his forces to use a jabing, penetrating stroke. So they went to straight blade weapons versus the curved saber. It was much more effective, and easier to pierce the body of the enemy with a straight jab than with a hacking swing to lop off an arm or leg. Once the body is pierced through the torso, they are unable to continue the battle.