I do not think the NCSE would agree with this statement. One of its most prominent members, who was a big figure at the Dover Trial, is Ken Miller, who is a TE/EC. He was never labelled as a creationist by Eugenie Scott or the organization. (Ken Miller also had some strong words for Jerry Coyne when Coyne started attacking the religious position of Francis Collins, even though Coyne was also a member of the NCSE at the time.) I have no doubt that Coyne and a good number of NCSE members privately regard TE/EC as just a half-hearted compromise between creationism and good science, but that is not, last I heard, the official position of the NCSE on TE/EC. Last I heard, the NCSE remains neutral regarding the TE/EC, since TE/EC does not oppose evolution.