Like I said, since the beginning of Dark Reign, people knew it wouldn't last very long, and the reason is this: Norman Osborn is crazy. Remember how he killed Swordsman the same day he took control of H.A.M.M.E.R.? Or how he was recently shown, as seen in the Moments of the Week, beating the crap out of a mentally handicapped Tony Stark in front of TV cameras?
And that's without mentioning his little Goblin episode back in Thunderbolt Mountain, where he suited up as the Green Goblin and killed a bunch of people. So far Osborn has managed to play the media game in his favor, brushing away the concern over his mental health, but surely it will one day all come back to bite him in the ass, in a very public way.