I installed the update 1.3 while in the middle of that dungeon and there were no more of those with huge swords. In fact my last quick save before patch, if I remember correctly, was with some of those with huge swords just around the corner and I died once or twice and then after the patch the same bandits didn't have those swords.
Anyone else noticed this? Is it clear how they change mechanics (of level scaling) in the patch?
Edit: not patched means I didn't have 1.2 neither.
The dungeon I was in is in spoiler section...
Spoiler
It's the cave behind the East Empire Trading Company warehouse near Solitude where I had a quest to follow an Argonian.