Pretty much everything is broken, imbalanced, and unplayable. I had a giant list of problems, and I was planning on typing them all out when I suddenly realized that it was a list of every single PvP mechanic available in game. That's right. Literally EVERYTHING is broken for this weak pathetic class.
Every other class has a multitude of abilities that are useful for PvP that actually function as intended. (Cast time, effectiveness, damage, refresh, etc.) SW has none. For instance, Grasp of Hadar has something like a 2 second cast time and lasts less than a quarter second and does almost no damage. With such long cast times and every other class's ability to stun, control, knockback, etc, we can barely cast anything anyways. Not before dying nearly instantly. SW are also the primary target when attacking a group. We're basically a free kill.
Come on, you guys have the internal metrics to know this stuff, right? At least I hope you do. I may be putting too much faith in your data analysis considering how poorly balanced PvP is.
And then there's matchmaking. HAHAHAHA. It's too bad nobody hired an intern to program anything useful there. It's called a queue because you literally pull whoever is in the queue, mash them into a group, and throw them against a PvP guild with BiS PvP gear.