There is a difference in philosophy of what is the job of the certifying organization. Are they there to INFORM OR PROTECT? In this case the OU has decided to protect, and be strict.
Practically speaking, do not assume that no dairy ingredients means pareve. For example, I called them a little while ago about oreos. I was told that plain and double stuffed may be considered DE, but all other flavors are really dairy. I don’t think that the other flavors report having milk in their ingredients. So please be careful.
The OU’s number is 212-613-8241.