Thanks ..an actual answer ..finally .<quoted text>
NFP is licit. But the reasons one may use it, may be illicit. In this case, I think the writer is trying to say that saving money for college is an illicit reason.(I don't know for sure if this is true or not, but seems to be central in his article.)
If family planning is,ok ..I don't get his point ..But then he seems to be kind of a throwback ..IMO.
But he has a,point about Colleges and what they teach in this,day and age ..liberal to the max