Who said that these were Syrian Christians? Øbama policy is to favor Muslim refugees over Christian. See also here: here, here, here, and here.
I know because they have already settled Syrian Christian families in the area several years ago. A friend’s Mennonite Church has sponsored quite a few families.
As far as favoring Muslim refugees, it is also the case that Muslims are the majority that are fleeing ISIS and the Syrian Civil War. Christians are a very small minority of the population. However, that these people have experienced the destructive nature of ISIS means they will be a benefit in mosques to stop the spread of radicalization.