Wow this community is just a joke, you ppl are telling the op (who has a good point) that the reason new content is locked from df is pretty much "to prevent wiping?" Or "because you won't clear it anyway" or "the chances are slim". Are you kidding me! Some of the posts here are so mind blowingly backwards it's a wonder you even posted!

*Well join a prog/practice group to learn: clearly op said they did that with no progress since they have little time and it takes quite awhile at times to even get the needed players to run the content (which btw you will most likely wipe multiple times aswell)

*it would be a waste of time you wouldn't have a chance anyway of clearing with a pug: So your answer is that it shouldn't be on df because you will wipe a lot, the same thing that will happen in a pf group? And when the heck did it everyone that uses DF become "the worst players in the game"

So your answer to the op is keep subbing and wait to get lucky on pf to learn fights, SE made this a thing and while I don't have a problem with it in general that doesn't mean it's right locking many out of fights they could learn in df is not right, and only elitist pricks would think it is. Period!