I just think it's a matter of how our cognitive processes work. While NTs that aren't fooling themselves will admit to having "feelings" and emotion, it just doesn't really factor in to our decision making or behavioral framework at all. We don't really consider them important when it comes to making a decision or examining a situation.
If an NT says "I don't really have feelings" I think he is just trying to insist "they're there, but irrelevant, so there's no point explaining to you the distinction."
But yes, NFs do seem to want to see emotions follow their course in everybody as they do themselves. Which is fine, because that's how you work. But feelings don't play the same role with NTs as they do NFs, so what Stigmatic is saying is essentially true, in my opinion.