Forgot who mentioned it a bunch of pages back about "how can a 40 year old Rock pass the torch to a 35 year old Cena on the downside of his career?", but it's cause Rock passed it to Brock in 02, but Brock was all "f that, I dont even like the WWE that much." so Rock had to repass the torch to Cena
Looks like the WWE is doing that thing where they have the obviously over person (Zigglet in this case) slander the crowd so he won't get cheered, while they pump in the cheers for the guy not over (Del Rio). It may have been different for the live crowd, but it appears otherwise on tv.