They're not taking the belt off Page this early; I wish people would stop saying this. It's like fans continually saying that Punk was heel in the Eddie feud despite him being 100% right about Eddie in storyline and continually coming out of the face tunnel. I highly doubt they have someone beat him before he gets a PPV title defense.
With that said, I highly doubt Hangman makes it past Double or Nothing as champion (and I wouldn't be shocked if Danielson takes it from him there either). I just don't see that happening for some reason, maybe because TOO long of a reign probably won't work with Hangman's story, if they are indeed still writing that story.
Page will most likely beat Bryan but, the possibility that he could be screwed makes this feud so much more interesting.
If it was a generic face vs face feud, everyone knows that Hangman would retain in a fair match. A heel Bryan adds more unpredictability to the outcome which helps the feud. It creates more urgency for Page fans who want to see him beat Bryan.
I'm glad they're going in this direction. I think we will see a side of Bryan we haven't seen in years.