Guess what Cryptic, your actions didn't change a thing. Groups of people are still doing this and finishing in a few minutes. You only hurt small fleets of under 3 people who liked to PvP solo, whom now have to work harder, while those Kamekaze groups get their dailies done in a few minutes.
I don't think solo PvP or 1v1 is intended to be a heavily supported feature. Among other things, it's not generally intended to be balanced in most MMOs. Balancing is based around group play and average group compositions.