Nah, it just looks like that because he's feuding with The Rock, and whoever feuds with The Rock is automatically the main focus of the show. He's still their 2nd biggest star and draw though in front of Sheamus, Orton and Ryback.
I would argue that Punk is not a bigger draw than Orton. Orton drew big during his heel days 2007-2010. Punk drew pretty big in Summer 2011 but thats about it. Since then he has draw either OK, or slightly above average. Remember ppv were up in 2012 from 2011, and Cena mainevented most of them and even the few that Punk did ME like NOC Cena was in the mainevent. Apart from that, Punk is the number 2 guy. He is the star of the show ATM but Cena is THE MAN. Simple.
No way lol, not even close. When casual fans hear "WWE" they think of John Cena.
Likehim or not Cena is a cultural icon.
Punks just a rassler.
No they don't. When people think WWE, they think of several others before Cena, even Bret Hart is more known to WWE than Cena overall, thanks to being a big star from so many years. I can name at least ten Superstars who are. If you just mean right now, still even guys like Austin, Rock, HHH or Taker are still more known by WWE than Cena. He's the least relevant top star this company has ever had.