Sorry, but I trust constitutional scholar Laurence Tribe over a bunch of teenagers on the internet. It is clear that Cruz is not eligible. It's a stupid law, but it's the law nonetheless.
That is an amazingly irresponsible thing for a lawyer to say. Really. And Tribe gets nowhere near to saying that. He says, if you take Cruz's approach to Constitutional interpretation, he's in trouble (I don't agree with that, but whatever). He was tweaking Cruz over that, more than the merits of the issue. If he were asked how he would vote on SCOTUS over this issue, he would say, of course I would rule that he is eligible.