As much as it hurts to say it, HHH is not THEE face of the WWE, and maybe that's where Headfirst for Hardcore was going with his comment.
It's a side and side situation, as HHH represents the WWE in a lot of ways, either in talk shows, interviews, press conferences, and he's the most requested to do so.
However, in wrestling, when carrying a show, and maybe with the exception of 2004-2005, he has never been able to fully carry a show by himself.
You see John Cena, and he carried Raw from 2006 to 2007. Triple H and his reign as a champion? For some reason, Triple H never felt as the face of Raw.
Now, on SD, HHH is not the face of the show. He's not able to put the weight of the brand on his shoulders, like for example Edge did.
What I am trying to say is that, HHH do scream main eventer, and screams top guy. However, not ABSOLUTE TOP GUY, like Austin, Rock, Hogan, Edge do.