It can be done, although it is more difficult.
Here Bluez, you've hit the nail right on the head. It's more difficult to win while playing properly, than it is to win while spamming backstab. Especially in FFA. In duels, well NF duels are a lot of fun post-1.03, but that's the only game setting that's been helped by the gameplay tweaks.
To me, it just doesn't seem right that the quickest, easiest way to win is to use nothing but backstab. It reduces the game to the level of "pong."