Now read chapter 1 of their Terms of Service and see how it takes precedence over EVERYTHING else.
Actually, this is quite the opposite.
1.5 If there is any contradiction between what the Additional Terms say and what the Universal Terms say, then the Additional Terms shall take precedence in relation to that Service.
In the document, "Additional Terms" refers to additional ToS documents and Privacy Policy documents, etc., and "Universal Terms" refers to this. I think this is pretty much the most straightforward legalese I've ever seen, and it very clearly states that if the privacy policy of their DNS solution says they're not going to keep your data more than 48 hours, they are not going to, regardless of what the Universal Terms document states.
Living on Earth may be expensive, but it includes an annual free trip around the Sun.