Republican social, tax or environmental policies do not seem Christian, though. They rather seem to be a party for wealthy corporations. They always sell things like abortion or LGBT to Christian voters, but then, after being elected, no Christian policies are actually implemented, rather Democrats do them - for example Obama care.
The above is another example why I'm cynical about the poll: Christians have differences in opinion. Ironically, big corporations also seem to adore Democrats, but be that as it may, Obama care is a good example of that difference of opinion. There are Christians with the opinion that Christian compassion demands they must support things like Obama care. Yet buried in Obama care is a provision that doctors cannot refer patients to hospitals where they have a financial interest. The problem is that in rural areas, the first hospitals were owned by individual doctors, then by medical groups of doctors. Without that, there wouldn't have been a hospital in the first place. The unstated intent of that provision was likely the potential of fraud. A consequence of it is that doctors could no longer put up their own hospitals, as they did in the past. Coincidental or not, have seen more rural hospitals close after Obama care than before, and that hardly seems a good exercise of compassion.
This is were we get into Christians having a difference of opinion in how is the best way to accomplish something. Like the often very real question of whether you give someone in need of help cash or instead give them food or directly pay a utility bill or whatever.
Note also the very accurate observation of just because someone claims to support Christian ideals doesn't mean they actually do so. It's easy to claim something and not follow through.
Yet, using the cited post as an example there's something else here: a perception that may stay the hand in selecting a GOP candidate. That same perception is, I think, what kept some Evangelicals voting Democrat. Those aforementioned ministers who had participated in the Civil Rights Movement? I don't think any of them changed parties from Democrat to Republican. I also remember people who were so set against the GOP that they supported small third parties that never gained traction or widespread notice rather than vote GOP. In my own family, had members who said they were Independent until, in the 1960s, "Independent," at least locally, took on the aspect of a political party supporting specific things and not actually independent.
Let's put the shoe on the other foot: Let's say that, against the current trend, the Democrats see the secular political light and pull away from various things of dubious morality in the eyes of Christians. I'm not convinced that the perception among Christians that feel the Democrats have abandoned them would vanish overnight. That old perception is likely to persist for some time, especially if the political parties don't do an immediate flip-flop of what they support. In this situation, another poll with the exact opposite results of this one wouldn't mean a significant change at the polls. Just as I don't think this poll indicates a major change that's going to show up in the voting booths.