Ellen has some kind of business relationship with MGM.
for example in there casinos you will sometimes see slot machines dedicated to a type of Ellen theme.
I suspect there were behind-the-scenes negotiations in which she pledged not to ask him about his immigration status and many other things.
that is just a guess on my part however.
My guess is that she will turn it into a very woman friendly human interest story rather than any kind of substantive reporting of details.
What, carpet munching?