It is obvious that all of us that the UFC has done a terrible job of building Chris Weidman. Whether or not you thought Weidman was ready to beat Anderson this soon I'm sure most of us in "the know" felt he'd probably either dethrone Silva at some point or end up the champion after Silva retired. They had something special, but apparently no one at Zuffa realized it. Hell, they stuck him and Mark Munoz in a #1 contender fight on Fuel TV which was viewed by less people than a typical Facebook card. So heading into UFC 162 fans of the UFC didn't even know who he was.
The UFC attempted to fix this by quoting fighters saying how awesome is was and pulled out Joe Rogan with his stock, "If you were to build a guy to beat [insert champion] it would be [insert challenger]," line which convinced no one. People had been fed the same crap so much that most people were just hoping to see some spectacular finish by Anderson Silva. The spectacular finish happened to Anderson Silva and now much of the MMA world is crapping on Weidman because they didn't believe it could happen. They're also not even letting outlets like ESPN show the KO which could further build his hype since the KO was pretty clean.
It seemed like the UFC would be willing to just let Weidman languish as "the guy that beat Anderson Silva" but someone wised up and they decided to really push him. Today Weidman had 30 TV/radio interviews. They even landed him on ESPN First Take where he had a fantastic interview on ESPN's highest rated daily show. In the video, below, he looks like someone who can be a star. He's good looking, charming, engaging, and comfortable in front of the camera. This is in addition to him being a finisher, white(being honest, it helps), and a talented fighter.
If the UFC continues to push him then he can be known as Chris Weidman instead of "The guy that KO'd Anderson Silva" 3 months from now. The UFC is gonna be stuck with him for a while so they might as well work on getting him as big as possible now.