Tribe didn't made that claim. What Tribe did was offer his opinion that Cruz is NBC, say that most legal scholars have the same opinion (this is true), and then state the non-contentious assertion that SCOTUS has not decided a case (necessarily a presidential eligibility case) where the outcome hinged on NBC status.
SCOTUS has said that citizens who obtain citizenship by operation of statute are naturalized, even when the statute confers citizenship at birth without a naturalization proceeding.
You still miss my request. He did not say that in the interview. So WHERE are you getting his comment?! If Tribe did say he offered that opinion it would have to be some place...WHERE.