Nobody cares about that baloney because of any principle. They cared about it before because they thought it would be useful in an election. It wasn't.
The purpose of the provision is to ensure that a president has an important patriotic connection to the United States in the sense that he considers it his country, his home. Nobody is going to see Cruz as some sort of stranger to the United States whose primary loyalties are to some other country.
And, of course, there are some people who made some money by selling books and videos about the issue to the handful of people who felt that it was the only way to beat Obama.
You just indicated your belief the US Constitution is just a tool to use to get your way as the need may arise. All I have left is principle.
The best example is McCain. He was born on a US Military base in the Canal Zone which was effectively US territory, making him a Natural Born Citizen. Ted Cruz was born in a hospital on the local economy in Canada and was not even registered as a US Citizen Born Abroad as my daughter was. My daughter's only birth certificate was signed by a US Air Force Doctor and the US Consul to Portugal. The Consul also provided her an Infant Passport to prove her American Citizenship. Cruz does not have that and therefore cannot be our President. The Rule-of-Law is still important to a great may of US.