Of all the people not included with DLC, you really can't have the "Attitude era" without Chyna. Yes she's a mess now so I can see why the WWE avoids her but she was an important part of that era. Who can forget her angle with Jericho and Jarrett over the IC title? Or when she throttled Marlena on her debut?
Of course, I haven't see the full roster so for all I know she's in there.