Yes, the video works. Nice catch, I'll fix have it fixed for the next DD.
I think melee'ing with freezing would have worked in the small room where I encountered 3 enemies during my medium difficulty attempts, which would indeed make it a skill issue on my part (I did not think of combining melee and freezing)
Told ya. Don't feel bad though, the game is all about dying lots of times until you learn what's effective and what isn't (like you pointed out before.)
Electricity looks really powerful.
Indeed, that's why it has a slower ammo regeneration speed. However, it seems more powerful than it actually is due to the current enemy roster. The game will have all sorts of enemies beside robots, which means that electricity won't arc so neatly between crowds. All it takes is one insulator to stop the lightning chain.