I'm not exactly a gigantic Elop fan but Nokia was in trouble long before he came on board. Consider this headline from his hiring in 2010: "Nokia Hires Microsoft's Elop as CEO to Reverse Losses to Apple". A top Nokia shareholder said, "Earlier management grossly underestimated the challenges related to moving from a hardware-driven business model to software." And Elop: "My job is to take the organization through a period of disruption..." [1]
That's what's at the core of this, a kind of denial about Nokia's condition pre-Elop. Fans want to pretend everything was hunky-dorey and make the hatchet man the scapegoat.
But really, Nokia fumbled their chance to build a smartphone platform several years ago. And one could definitely argue that Elop's bet on Microsoft's platform was a better shot at a profitable strategy than competing with Samsung in the Android space. (Have you considered that's why the board brought him on in the first place?) Didn't work out so well but probably neither would have becoming yet another Android player.
[1] http://www.bloomberg.com/news/2010-09-10/nokia-hires-microso...