Admittedly, I don't remember since the reboot. But it's still telling that the Batman Inc story is the sequel (or the second part?) or a story that was started with Steph as Batgirl.

You see, you take Didio's statement of all the Robins having their own book to be a mention by exclusion, when it could as easily be taken for a statement that Steph didn't exist. It's no more a statement of Steph never being a Robin than it is of her existence being retconned away.

Whether they did or not doesn't contradict the point I was making, though.