You've quoted one poll many times as if that's somehow the end of discussion. Evangelicals might notice that there are those eager to seize upon such a thing. Consider it a kind of "code language", an implication. They've reason to be sensitive. Many pundits are suddenly eager to find some pretext to show that evangelicals shouldn't expect a "share" in the political pie.
Besides, the libs are on the run, taking lessons in how to "talk God." It's entertaining.
It's certainly not the end of the discussion; I posted what has been quoted over and over by the talking heads, including Michael Barone, Brit Hume and Charles Krauthammer. Take it up with them -- you know, THOSE liberals.