I don't think so, but so what? It doesn't affect the nature of the grant, and either way, the convoluted and wide-ranging operation of the grant is contrary to any sort of durable/immutable "naturalness."
“Was Rafael Cruz SR., “whose fathers have never been a resident”? “
Rafael Cruz was a U.S. Permanent Resident before he went to Canada. His subsequent acquisition of Canadian Permanent Resident status was supposed to cause the loss of his U.S. Permanent Resident status, but we have no information regarding whether or not Rafael Cruz or someone else notified U.S. immigration and naturalization authorities and any action was taken to revoke his U.S. Permanent Resident Green Card. Rafael Cruz also completed his required period as a Canadian Permanent Resident and acquired Canadian citizenship by naturalization.
A unique question arises in the event Eleanor Cruz went through the same steps at the same etime as her husband and also acquired Canadian citizenship at the same time. Many people keep their U.S. Passport and Canadian Passport without notifying the U.S. Government of their acquisition of dual citizenship claims. Although it is unlikely Eleanor would have acquired Canadian citizenship by the time of the birth of Tedd Cruz, if it did happen, it would present some novel problems with determining whether or not Ted Cruz should have been qualified to acquire U.S. citizenship with a mother who had acquired foreign citizenship in addition to U.S. citizenship.
He was a legal resident of the US before going to Canada.