Im actually a little lost here
how did the Rumble winner lose her right to face the champion at Mania? Injury?
The video package revised history and left this out for some reason, but Becky had an injured knee coming out of the Royal Rumble. Stephanie wanted Becky to get it checked out, but she didn't want to so Stephanie suspended her for 30 days. Then Becky kicked Stephanie's ass.
Triple H and Stephanie gave Becky a chance to apologize for what she did, which would have lifted her suspension and kept her from losing her spot against Ronda at WrestleMania. Becky apologized, then Vince came out, suspended her for 60 days, and took away her WrestleMania match anyway.