In defense of the Young Justice comics. I think the goal with comics based on animated shows, particularly shows that are still airing, is to act as a stepping stone for kids to get into comics. I actually liked how the Young Justice comics in particular emulate the concept of one book being part of a larger story. I enjoyed going through them with my daughter, who was a fan of the show and a total comics novice.
That said, I don't think they were doing great work there, or anything that would stand the test of time (and they weren't trying to). I generally agree with Malyse's point that comic stories should stand on their own no matter what context they exist within. I would never recommend that comic, not even to fans of the show (unless they just wanted more serviceable stories with the same team), but especially not to people who aren't already into it.
But. It's not an unusual thing for comics to exist as fan service, effectively, with the intent of supporting the central body of work. Sometimes those stories do stand on their own, but they often don't. So I don't think this particular comic should be too heavily criticized for leveraging the medium for a relatively normal practice.
