So now that they've nerfed the PvP exp for losing matches quite substantially (at lvl 40 I often get around 7-8k for a loss whereas I used to get around 13-14k), has anyone done any thinking as to whether or not it's viable to level through PvP?

Viable does NOT mean possible. It's possible to level at 5 xp per quest too, doesn't mean it's viable. By viable I mean, is it still somewhat within line of doing it through Pve?

Also, I'm not saying whether I think it's good or bad, I'm simply asking if someone's done any thinking around the topic or if perhaps someone has done a lot of PvP since these changes went in and can tell me their experience?