I think you're basing this whole opinion on the marks really investing in everything Punk says. As soon as Punk speaks he is boo'd, I can almost guarantee they don't listen and absorb everything he's saying (else they would have no self-esteem left). Coward heels like Punk need to fall sooner or later, it's the pay-off for the fans investing in the feud. The coward heel scrapes along with his title, winning luckily and fluky, everyone begins to really hate this. Eventually he loses cleanly and looks shit in the process, that's natural, and that's what is most likely going to happen with Rock.
CM Punk acknowledging Rock as a fierce competitor won't help him after Rock winks clean at all. It won't be "Oh CM Punk lost YAY, but he did say Rock was fierce so I still think CM Punk is a cool tough guy", lol. All marks care about is Rock shutting Punk up and putting him in his place, that's how they are building this storyline and it has worked perfectly in my opinion.
Didn't Paul Heyman say that last night? That Vince is doing all he can to make sure Punk loses the title, that is what you call good build imo.