You can supposedly breeze through some of the dungeon paths in like 15 mins, provided you know what you're doing anyways. I don't do dungeons as it turned me off very early on as well, I would rather the traditional way of doing them. Also the rewards being mostly cosmetic with stuff looking like shit anyways except citadel of flame, nowadays you can get like 2gold a run or something. But yes mostly a L2P dungeons gw2 style issue.
They revamped sPVP rewards, they introduced reward tracks for various things such as regions in the game, or dungeons which they rotate out every 2 weeks, also one special track to earn a flaming balthazar back piece. So for example the current open dungeon track is sorrow's embrace, in that track they offer champ bags and 3 weapons boxes and 1 armor box as the main rewards, there's a mini track in between those big rewards which rewards various things like tomes of knowledge, crafting mats, blue/green item drop bags. Takes about 5 of the mini tracks to get to one of the main rewards. When the dungeon track rotates out you either wait for it to come up again or you can continue on it if you completed the story mode of the dungeon.
The region tracks are open all the time and they offer champ bag loot, all tracks are also repeatable. You can only earn a certain amount of rank exp from the public games every day, and then you have to switch to teampvp if you want to earn more that day.
Ranks are still in there so you can earn the finishers as well. They updated the UI so it's much easier to switch out builds on the fly instead of having to go buy a new set of gear for it (well you still need to buy weapons but you can use common don't need exotics).
