While I don't doubt a plan of 4 NSwords can work, it seems too gimmicky and only work against randoms.
Because, imagine if your opponent using the same set-up; then the game is simply a race to see who find the enemy commander first because neither side is defending. >.>
.....and then people blame the fact defeat commander have much 'luck' factor involved when they don't defend their commander at all.
Well, just like confront, any set-up can work depending on your own skill and the enemy you are facing, I guess. 4 NSwords is probably equivalent to using all rush weapons in confront, and hope you can end the match while enemies are still preparing!