But it HAS been years in their time too. 52 itself was one year, plus add in everything else that's happened and we've jumped two or three years just from when I started reading, let alone when this stuff would have actually happened.
Cass has been through alot lately, as have the rest of the Batclan. Maybe she feels Steph deserves a shot or maybe she feels the Batclan has lost their way. maybe she's just sick of all of them.