Well, apart from that, the only other time Jason has appeared is Battle for the Cowl so really, it's just one series and a decent chuck of Countdown. It feels a little unfair to say "nearly every" when it's at least half an half. I will admit I'm disappointed this isn't Jason, though, because he would have been written as Winick and Johns have, as opposed to Countdown and Battle for the Cowl.
No, it wasn't. It could be argued as a tie in, but it was a seperate entity.