Backstage News On Cena's Title Win, HHH Involved
PWInsider reports that there were a lot of people on the creative team and in management who thought that it was a mistake to put the title back on Cena at the Rumble, but obviously more people higher up, including Triple H, decided otherwise. There is a feeling that a lot of the hatred from fans towards Cena went away once they took the title off.
The decision to give the title back to Cena appears to be the result of WrestleMania plans. Triple H has been making it known that he wants to wrestle against Cena at Mania for the WWE title.