Because she has political aspirations.
20 years ago, it wouldn’t have mattered. Now, the people that grew up voting for their favorite American Idol 50 times are a part of the electorate.
She’s not even in the news cycle and she’s NOT running for president. Hewitt was throwing out bait to get people talking about him and to get Trump going on some stupid tangent. Trump should have told him to get out of here with your ridiculousness.