As long as they've got enough acc to maintain hit-rate and enough haste to maintain cap what would be the problem w/ TPing in it?
@Valory
It's not like sTP is hard to come by now, and was assumed in my earlier comment. I doubt there would be a "net loss" with all the options we currently have. Either way, I'd still like to see the math on it.
You know it's all about what you can fill your slot's with. Maybe this isn't the most optimal body piece. But there's so much variation on armor's these days, I'm sure someone could make a build where this would work well. Not to mention no one really wants to look like everyone else when they show up too a fight.
My guess would be you'd be lacking in enough sTP to maintain your X-hit forcing you to pick stp&accuracy up in other places for a net-loss in DPS against any content that matters.